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The United States Marine Corps (USMC), also referred to as the United States Marines, is the
maritime land force Marines, or naval infantry, are typically a military force trained to operate in littoral zones in support of naval operations. Historically, tasks undertaken by marines have included helping maintain discipline and order aboard the ship (refl ...
service branch Military branch (also service branch or armed service) is according to common standard a subdivision of the national armed forces of a sovereign nation or state. Types of branches Unified armed forces The Canadian Armed Forces is the unifi ...
of the
United States Armed Forces The United States Armed Forces are the military forces of the United States. The armed forces consists of six service branches: the Army, Marine Corps, Navy, Air Force, Space Force, and Coast Guard. The president of the United States is ...
responsible for conducting expeditionary and
amphibious operations Amphibious warfare is a type of offensive military operation that today uses naval ships to project ground and air power onto a hostile or potentially hostile shore at a designated landing beach. Through history the operations were conducte ...
through
combined arms Combined arms is an approach to warfare that seeks to integrate different combat arms of a military to achieve mutually complementary effects (for example by using infantry and armour in an urban environment in which each supports the other) ...
, implementing its own
infantry Infantry is a military specialization which engages in ground combat on foot. Infantry generally consists of light infantry, mountain infantry, motorized infantry & mechanized infantry, airborne infantry, air assault infantry, and mar ...
,
artillery Artillery is a class of heavy military ranged weapons that launch munitions far beyond the range and power of infantry firearms. Early artillery development focused on the ability to breach defensive walls and fortifications during si ...
, aerial, and
special operations Special operations (S.O.) are military activities conducted, according to NATO, by "specially designated, organized, selected, trained, and equipped forces using unconventional techniques and modes of employment". Special operations may include ...
forces. The U.S. Marine Corps is one of the eight
uniformed services of the United States The United States has eight federal uniformed services that commission officers as defined by Title 10 and subsequently structured and organized by Titles 10, 14, 32, 33 and 42 of the U.S. Code. Uniformed services The uniformed services ...
. The Marine Corps has been part of the
U.S. Department of the Navy The United States Department of the Navy (DoN) is one of the three military departments within the Department of Defense of the United States of America. It was established by an Act of Congress on 30 April 1798, at the urging of Secretary of ...
since 30 June 1834 with its sister service, the
United States Navy The United States Navy (USN) is the maritime service branch of the United States Armed Forces and one of the eight uniformed services of the United States. It is the largest and most powerful navy in the world, with the estimated tonnage ...
. The USMC operates installations on land and aboard sea-going
amphibious warfare ship An amphibious warfare ship (or amphib) is an amphibious vehicle warship employed to land and support ground forces, such as marines, on enemy territory during an amphibious assault. Specialized shipping can be divided into two types, most cr ...
s around the world. Additionally, several of the Marines' tactical
aviation Aviation includes the activities surrounding mechanical flight and the aircraft industry. ''Aircraft'' includes airplane, fixed-wing and helicopter, rotary-wing types, morphable wings, wing-less lifting bodies, as well as aerostat, lighter- ...
squadrons, primarily Marine Fighter Attack squadrons, are also embedded in Navy
carrier air wing A carrier air wing (abbreviated CVW) is an operational naval aviation organization composed of several aircraft squadrons and detachments of various types of fixed-wing and rotary-wing aircraft. Organized, equipped and trained to conduct mo ...
s and operate from the
aircraft carrier An aircraft carrier is a warship that serves as a seagoing airbase, equipped with a full-length flight deck and facilities for carrying, arming, deploying, and recovering aircraft. Typically, it is the capital ship of a fleet, as it allows a ...
s. The history of the Marine Corps began when two
battalion A battalion is a military unit, typically consisting of 300 to 1,200 soldiers commanded by a lieutenant colonel, and subdivided into a number of companies (usually each commanded by a major or a captain). In some countries, battalions ...
s of
Continental Marines The Continental Marines were the amphibious infantry of the American Colonies (and later the United States) during the American Revolutionary War. The Corps was formed by the Continental Congress on November 10, 1775 and was disbanded in 17 ...
were formed on 10 November 1775 in
Philadelphia Philadelphia, often called Philly, is the largest city in the Commonwealth of Pennsylvania, the sixth-largest city in the U.S., the second-largest city in both the Northeast megalopolis and Mid-Atlantic regions after New York City. Since ...
as a service branch of infantry troops capable of fighting both at sea and on shore. In the Pacific theater of
World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the World War II by country, vast majority of the world's countries—including all of the great power ...
the Corps took the lead in a massive campaign of amphibious warfare, advancing from island to island. As of 2022, the USMC has around 177,200 active duty members and some 32,400 personnel in
reserve Reserve or reserves may refer to: Places * Reserve, Kansas, a US city * Reserve, Louisiana, a census-designated place in St. John the Baptist Parish * Reserve, Montana, a census-designated place in Sheridan County * Reserve, New Mexico, a US ...
.


Mission

As outlined in and as originally introduced under the
National Security Act of 1947 The National Security Act of 1947 ( Pub.L.br>80-253 61 Stat.br>495 enacted July 26, 1947) was a law enacting major restructuring of the United States government's military and intelligence agencies following World War II. The majority of the pro ...
, three primary areas of responsibility for the U.S. Marine Corps are: * Seizure or defense of advanced naval bases and other land operations to support naval campaigns; * Development of tactics, technique, and equipment used by amphibious landing forces in coordination with the
Army An army (from Old French ''armee'', itself derived from the Latin verb ''armāre'', meaning "to arm", and related to the Latin noun ''arma'', meaning "arms" or "weapons"), ground force or land force is a fighting force that fights primarily on ...
and
Air Force An air force – in the broadest sense – is the national military branch that primarily conducts aerial warfare. More specifically, it is the branch of a nation's armed services that is responsible for aerial warfare as distinct from an ...
; and * Such other duties as the
President President most commonly refers to: *President (corporate title) * President (education), a leader of a college or university * President (government title) President may also refer to: Automobiles * Nissan President, a 1966–2010 Japanese ...
or
Department of Defense Department of Defence or Department of Defense may refer to: Current departments of defence * Department of Defence (Australia) * Department of National Defence (Canada) * Department of Defence (Ireland) * Department of National Defense (Philipp ...
may direct. This last clause derives from similar language in the Congressional acts ''"For the Better Organization of the Marine Corps"'' of 1834, and ''"Establishing and Organizing a Marine Corps"'' of 1798. In 1951, the House of Representatives' Armed Services Committee called the clause "one of the most important statutory – and traditional – functions of the Marine Corps". It noted that the Corps has more often than not performed actions of a non-naval nature, including its famous actions in Tripoli, the
War of 1812 The War of 1812 (18 June 1812 – 17 February 1815) was fought by the United States of America and its indigenous allies against the United Kingdom and its allies in British North America, with limited participation by Spain in Florida. It be ...
,
Chapultepec Chapultepec, more commonly called the "Bosque de Chapultepec" (Chapultepec Forest) in Mexico City, is one of the largest city parks in Mexico, measuring in total just over 686 hectares (1,695 acres). Centered on a rock formation called Chapultep ...
, and numerous
counter-insurgency Counterinsurgency (COIN) is "the totality of actions aimed at defeating irregular forces". The Oxford English Dictionary defines counterinsurgency as any "military or political action taken against the activities of guerrillas or revolutionar ...
and occupational duties (such as those in Central America,
World War I World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was List of wars and anthropogenic disasters by death toll, one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, ...
, and the
Korean War {{Infobox military conflict , conflict = Korean War , partof = the Cold War and the Korean conflict , image = Korean War Montage 2.png , image_size = 300px , caption = Clockwise from top:{ ...
). While these actions are not accurately described as support of naval campaigns nor as amphibious warfare, their common thread is that they are of an expeditionary nature, using the mobility of the Navy to provide timely intervention in foreign affairs on behalf of American interests. The Marine Band, dubbed the "President's Own" by
Thomas Jefferson Thomas Jefferson (April 13, 1743 – July 4, 1826) was an American statesman, diplomat, lawyer, architect, philosopher, and Founding Fathers of the United States, Founding Father who served as the third president of the United States from 18 ...
, provides music for state functions at the
White House The White House is the official residence and workplace of the president of the United States. It is located at 1600 Pennsylvania Avenue NW in Washington, D.C., and has been the residence of every U.S. president since John Adams in ...
. Marines from Ceremonial Companies A & B, quartered in Marine Barracks, Washington, D.C., guard presidential retreats, including
Camp David Camp David is the country retreat for the president of the United States of America. It is located in the wooded hills of Catoctin Mountain Park, in Frederick County, Maryland, near the towns of Thurmont and Emmitsburg, about north-northwest ...
, and the marines of the Executive Flight Detachment of
HMX-1 Marine Helicopter Squadron One (HMX-1) is a United States Marine Corps helicopter squadron responsible for the transportation of the president and vice president of the United States, heads of state, Department of Defense officials, and other VIP ...
provide helicopter transport to the President and
Vice President A vice president, also director in British English, is an officer in government or business who is below the president (chief executive officer) in rank. It can also refer to executive vice presidents, signifying that the vice president is on ...
, with the radio call signs "
Marine One Marine One is the call sign of any United States Marine Corps aircraft carrying the president of the United States. It usually denotes a helicopter operated by Marine Helicopter Squadron One (HMX-1) "Nighthawks", consisting of either the large ...
" and "Marine Two", respectively. The Executive Flight Detachment also provides helicopter transport to
Cabinet members This is a list of the offices of heads of state, heads of government, cabinet, and legislature, of sovereign states. Date of Origin refers to most recent fundamental change in form of government, for example independence, change from absolute mon ...
and other
VIPs A very important person or personage (VIP or V.I.P.) is a person who is accorded special privileges due to their high social status, influence or importance. The term was not common until sometime after World War 2 by RAF pilots. Examples inc ...
. By authority of the 1946 Foreign Service Act, the
Marine Security Guard A Marine Security Guard (MSG), also known as a Marine Embassy Guard, is a member of the Marine Corps Embassy Security Group (formerly Marine Security Guard Battalion), a brigade-sized organization of the United States Marine Corps (USMC) whose de ...
s of the Marine Embassy Security Command provide security for American
embassies A diplomatic mission or foreign mission is a group of people from a state or organization present in another state to represent the sending state or organization officially in the receiving or host state. In practice, the phrase usually deno ...
,
legation A legation was a diplomatic representative office of lower rank than an embassy. Where an embassy was headed by an ambassador, a legation was headed by a minister. Ambassadors outranked ministers and had precedence at official events. Legations ...
s, and
consulates A consulate is the office of a consul. A type of diplomatic mission, it is usually subordinate to the state's main representation in the capital of that foreign country (host state), usually an embassy (or, only between two Commonwealth count ...
at more than 140 posts worldwide. The relationship between the
Department of State The United States Department of State (DOS), or State Department, is an executive department of the U.S. federal government responsible for the country's foreign policy and relations. Equivalent to the ministry of foreign affairs of other na ...
and the U.S. Marine Corps is nearly as old as the Corps itself. For over 200 years, marines have served at the request of various Secretaries of State. After
World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the World War II by country, vast majority of the world's countries—including all of the great power ...
, an alert, disciplined force was needed to protect American embassies, consulates, and legations throughout the world. In 1947, a proposal was made that the Department of Defense furnishes Marine Corps personnel for Foreign Service guard duty under the provisions of the Foreign Service Act of 1946. A formal Memorandum of Agreement was signed between the Department of State and the
Secretary of the Navy The secretary of the Navy (or SECNAV) is a statutory officer () and the head (chief executive officer) of the Department of the Navy, a military department (component organization) within the United States Department of Defense. By law, the se ...
on 15 December 1948, and 83 marines were deployed to overseas missions. During the first year of the program, 36 detachments were deployed worldwide.


Historical mission

The Marine Corps was founded to serve as an infantry unit aboard naval vessels and was responsible for the security of the ship and its crew by conducting offensive and defensive combat during boarding actions and defending the ship's officers from
mutiny Mutiny is a revolt among a group of people (typically of a military, of a crew or of a crew of pirates) to oppose, change, or overthrow an organization to which they were previously loyal. The term is commonly used for a rebellion among memb ...
; to the latter end, their quarters on the ship were often strategically positioned between the officers' quarters and the rest of the vessel. Continental Marines manned raiding parties, both at sea and ashore. America's first amphibious assault landing occurred early in the Revolutionary War on 3 March 1776 as the Marines gained control of Fort Montagu and Fort Nassau, a
British British may refer to: Peoples, culture, and language * British people, nationals or natives of the United Kingdom, British Overseas Territories, and Crown Dependencies. ** Britishness, the British identity and common culture * British English, ...
ammunition depot and naval port in
New Providence New Providence is the most populous island in the Bahamas, containing more than 70% of the total population. It is the location of the national capital city of Nassau, whose boundaries are coincident with the island; it had a population of 246 ...
, the Bahamas. The role of the Marine Corps has expanded significantly since then; as the importance of its original naval mission declined with changing naval warfare doctrine and the professionalization of the naval service, the Corps adapted by focusing on formerly secondary missions ashore. The Advanced Base Doctrine of the early 20th century codified their combat duties ashore, outlining the use of marines in the seizure of bases and other duties on land to support naval campaigns. Throughout the late 19th and 20th centuries, Marine detachments served aboard Navy cruisers, battleships and aircraft carriers. Marine detachments served in their traditional duties as a ship's landing force, manning the ship's weapons and providing shipboard security. Marine detachments were augmented by members of the ship's company for landing parties, such as in the
First Sumatran expedition The First Sumatran expedition, which featured the Battle of Quallah Battoo (Aceh: Kuala Batèë, Indonesian: Kuala Batu) in 1832, was a punitive expedition by the United States Navy against the village of Kuala Batee, presently a subdistrict i ...
of 1832, and continuing in the Caribbean and Mexican campaigns of the early 20th centuries. Marines developed tactics and techniques of amphibious assault on defended coastlines in time for use in World War II. During World War II, marines continued to serve on capital ships. They often were assigned to man anti-aircraft batteries. In 1950, President
Harry Truman Harry S. Truman (May 8, 1884December 26, 1972) was the 33rd president of the United States, serving from 1945 to 1953. A leader of the Democratic Party, he previously served as the 34th vice president from January to April 1945 under Franklin ...
responded to a message from U.S. Representative
Gordon L. McDonough Gordon Leo McDonough (January 2, 1895 – June 25, 1968) was an American politician who served as a U.S. Representative from Californiafrom 1945 to 1963. Early life and career Born in Buffalo, New York, McDonough moved with his parents to Emp ...
. McDonough had urged President Truman to add Marine representation on the
Joint Chiefs of Staff The Joint Chiefs of Staff (JCS) is the body of the most senior uniformed leaders within the United States Department of Defense, that advises the president of the United States, the secretary of defense, the Homeland Security Council and the ...
. President Truman, writing in a letter addressed to McDonough, stated that "The Marine Corps is the Navy's police force and as long as I am President that is what it will remain. They have a propaganda machine that is almost equal to Stalin's." McDonough then inserte
President Truman's letter
dated 29 August 1950, into the ''
Congressional Record The ''Congressional Record'' is the official record of the proceedings and debates of the United States Congress, published by the United States Government Publishing Office and issued when Congress is in session. The Congressional Record Inde ...
''. Congressmen and Marine organizations reacted, calling President Truman's remarks an insult and demanded an apology. Truman apologized to the Marine commandant at the time, writing, "I sincerely regret the unfortunate choice of language which I used in my letter of August 29 to Congressman McDonough concerning the Marine Corps." While Truman had apologized for his metaphor, he did not alter his position that the Marine Corps should continue to report to the Navy secretary. He made amends only by making a surprise visit to the
Marine Corps League The Marine Corps League is the only congressionally chartered United States Marine Corps-related veterans organization in the United States. Its congressional charter was approved by the 75th U.S. Congress and signed by President Franklin D. R ...
a few days later, when he reiterated, "When I make a mistake, I try to correct it. I try to make as few as possible." He received a standing ovation. When gun cruisers were retired by the 1960s, the remaining Marine detachments were only seen on battleships and carriers. Its original mission of providing shipboard security ended in the 1990s.


Capabilities

The Marine Corps fulfills a critical military role as an amphibious warfare force. It is capable of
asymmetric warfare Asymmetric warfare (or asymmetric engagement) is the term given to describe a type of war between belligerents whose relative military power, strategy or tactics differ significantly. This is typically a war between a standing, professional ar ...
with conventional, irregular, and hybrid forces. While the Marine Corps does not employ any unique capabilities, as a force it can rapidly deploy a combined-arms task force to almost anywhere in the world within days. The basic structure for all deployed units is a
Marine Air-Ground Task Force Marine Air-Ground Task Force (MAGTF, pronounced MAG-TAF) is a term used by the United States Marine Corps to describe the principal organization for all missions across the range of military operations. MAGTFs are a balanced air-ground, combined a ...
(MAGTF) that integrates a ground combat element, an aviation combat element and a logistics combat element under a common
command element In the United States Marine Corps, the command element (CE) is the command and control force of a Marine Air-Ground Task Force (MAGTF). It provides C3I for the MAGTF. __TOC__ Role within the MAGTF The Command Element (CE), a headquarters unit ...
. While the creation of joint commands under the
Goldwater–Nichols Act The Goldwater–Nichols Department of Defense Reorganization Act of October 4, 1986 , (signed by President Ronald Reagan), made the most sweeping changes to the United States Department of Defense since the department was established in the ...
has improved inter-service coordination between each branch, the Corps's ability to permanently maintain integrated multi-element task forces under a single command provides a smoother implementation of combined-arms warfare principles. The close integration of disparate Marine units stems from an organizational culture centered on the infantry. Every other Marine capability exists to support the infantry. Unlike some Western militaries, the Corps remained conservative against theories proclaiming the ability of new weapons to win wars independently. For example,
Marine aviation Marine is an adjective meaning of or pertaining to the sea or ocean. Marine or marines may refer to: Ocean * Maritime (disambiguation) * Marine art * Marine biology * Marine debris * Marine habitats * Marine life * Marine pollution Military ...
has always been focused on
close air support In military tactics, close air support (CAS) is defined as air action such as air strikes by fixed or rotary-winged aircraft against hostile targets near friendly forces and require detailed integration of each air mission with fire and movemen ...
and has remained largely uninfluenced by air power theories proclaiming that
strategic bombing Strategic bombing is a military strategy used in total war with the goal of defeating the enemy by destroying its morale, its economic ability to produce and transport materiel to the theatres of military operations, or both. It is a systematica ...
can single-handedly win wars. This focus on the infantry is matched with the doctrine of "Every marine sa rifleman", a precept of Commandant
Alfred M. Gray, Jr. Alfred Mason Gray Jr. (born June 22, 1928) is a retired United States Marine Corps four-star general who served as the 29th Commandant of the Marine Corps from 1 July 1987 until his retirement on 30 June 1991 after 41 years of service. Early li ...
, emphasizing the infantry combat abilities of every marine. All marines, regardless of military specialization, receive training as a
rifleman A rifleman is an infantry soldier armed with a rifled long gun. Although the rifleman role had its origin with 16th century hand cannoneers and 17th century musketeers, the term originated in the 18th century with the introduction of the ri ...
; and all officers receive additional training as infantry platoon commanders. During World War II at the
Battle of Wake Island The Battle of Wake Island was a battle of the Pacific campaign of World War II, fought on Wake Island. The assault began simultaneously with the attack on Pearl Harbor naval and air bases in Hawaii on the morning of 8 December 1941 (7 December ...
, when all of the Marine aircraft were destroyed, pilots continued the fight as ground officers, leading supply clerks and cooks in a final defensive effort. Flexibility of execution is implemented via an emphasis on " commander's intent" as a guiding principle for carrying out orders, specifying the end state but leaving open the method of execution. The amphibious assault techniques developed for World War II evolved, with the addition of
air assault Air assault is the movement of ground-based military forces by vertical take-off and landing (VTOL) aircraft—such as the helicopter—to seize and hold key terrain which has not been fully secured, and to directly engage enemy forces behind ...
and
maneuver warfare Maneuver warfare, or manoeuvre warfare, is a military strategy which seeks to shatter the enemy's overall cohesion and will to fight. Background Maneuver warfare, the use of initiative, originality and the unexpected, combined with a rut ...
doctrine, into the current "''Operational Maneuver from the Sea''" doctrine of
power projection Power projection (or force projection or strength projection), in international relations, is the capacity of a state to deploy and sustain forces outside its territory. The ability of a state to project its power into an area may serve as an ...
from the seas. The Marines are credited with the development of helicopter insertion doctrine and were the earliest in the American military to widely adopt maneuver-warfare principles, which emphasize low-level initiative and flexible execution. In light of recent warfare that has strayed from the Corps's traditional missions, the Marines have renewed an emphasis on amphibious capabilities. The Marine Corps relies on the Navy for
sealift Sealift is a term used predominantly in military logistics and refers to the use of cargo ships for the deployment of military assets, such as weaponry, vehicles, military personnel, and supplies. It complements other means of transport, such a ...
to provide its rapid deployment capabilities. In addition to basing a third of the
Fleet Marine Force The United States Fleet Marine Forces (FMF) are combined general- and special-purpose forces within the United States Department of the Navy that perform offensive amphibious or expeditionary warfare and defensive maritime employment. The Flee ...
in Japan,
Marine expeditionary unit A Marine expeditionary unit (MEU, pronounced as one syllable "" IPA: ) is the smallest air-ground task force (MAGTF) in the United States Fleet Marine Force. To aid rapid deployment, the Maritime Pre-Positioning System was developed: fleets of
container ship A container ship (also called boxship or spelled containership) is a cargo ship that carries all of its load in truck-size intermodal containers, in a technique called containerization. Container ships are a common means of commercial intermoda ...
s are positioned throughout the world with enough equipment and supplies for a marine expeditionary force to deploy for 30 days.


Doctrine

Two small manuals published during the 1930s established USMC doctrine in two areas. The ''
Small Wars Manual The ''Small Wars Manual'' is a United States Marine Corps manual on tactics and strategies for engaging in certain types of military operations. The Marine Corps' role in small wars has a long and complex history. During the early years of the 2 ...
'' laid the framework for Marine
counter-insurgency Counterinsurgency (COIN) is "the totality of actions aimed at defeating irregular forces". The Oxford English Dictionary defines counterinsurgency as any "military or political action taken against the activities of guerrillas or revolutionar ...
operations from
Vietnam Vietnam or Viet Nam ( vi, Việt Nam, ), officially the Socialist Republic of Vietnam,., group="n" is a country in Southeast Asia, at the eastern edge of mainland Southeast Asia, with an area of and population of 96 million, making ...
to
Iraq Iraq,; ku, عێراق, translit=Êraq officially the Republic of Iraq, '; ku, کۆماری عێراق, translit=Komarî Êraq is a country in Western Asia. It is bordered by Turkey to Iraq–Turkey border, the north, Iran to Iran–Iraq ...
and
Afghanistan Afghanistan, officially the Islamic Emirate of Afghanistan,; prs, امارت اسلامی افغانستان is a landlocked country located at the crossroads of Central Asia and South Asia. Referred to as the Heart of Asia, it is borde ...
while the ''Tentative Landing Operations Manual'' established the doctrine for the amphibious operations of World War II. "''Operational Maneuver from the Sea''" was the doctrine of power projection in 2006.


History


Foundation and American Revolutionary War

The United States Marine Corps traces its roots to the
Continental Marines The Continental Marines were the amphibious infantry of the American Colonies (and later the United States) during the American Revolutionary War. The Corps was formed by the Continental Congress on November 10, 1775 and was disbanded in 17 ...
of the
American Revolutionary War The American Revolutionary War (April 19, 1775 – September 3, 1783), also known as the Revolutionary War or American War of Independence, was a major war of the American Revolution. Widely considered as the war that secured the independence of t ...
, formed by Captain
Samuel Nicholas Samuel Nicholas (1744 – 27 August 1790) was the first officer commissioned in the United States Continental Marines (predecessor to the United States Marine Corps) and by tradition is considered to be the first Commandant of the Marine Cor ...
by a resolution of the
Second Continental Congress The Second Continental Congress was a late-18th-century meeting of delegates from the Thirteen Colonies that united in support of the American Revolutionary War. The Congress was creating a new country it first named "United Colonies" and in 1 ...
on 10 November 1775, to raise two
battalion A battalion is a military unit, typically consisting of 300 to 1,200 soldiers commanded by a lieutenant colonel, and subdivided into a number of companies (usually each commanded by a major or a captain). In some countries, battalions ...
s of marines. This date is celebrated as the birthday of the Marine Corps. Nicholas was nominated to lead the Marines by
John Adams John Adams (October 30, 1735 – July 4, 1826) was an American statesman, attorney, diplomat, writer, and Founding Fathers of the United States, Founding Father who served as the second president of the United States from 1797 to 1801. Befor ...
. By December 1775, Nicholas raised one battalion of 300 men by recruitment in his home city of Philadelphia. In January 1776, the Marines went to sea under the command of Commodore
Esek Hopkins Esek Hopkins (April 26, 1718February 26, 1802) was an American naval officer, merchant captain, and privateer. Achieving the rank of Commodore, Hopkins was the only Commander in Chief of the Continental Navy during the American Revolutionary Wa ...
and in March undertook their first amphibious landing, the
Battle of Nassau The Raid of Nassau (March 3–4, 1776) was a naval operation and amphibious assault by American forces against the British port of Nassau, Bahamas, during the American Revolutionary War. The raid, designed to resolve the issue of gunpowder short ...
in the Bahamas, occupying the British port of Nassau for two weeks. On 3 January 1777, the Marines arrived at the
Battle of Princeton The Battle of Princeton was a battle of the American Revolutionary War, fought near Princeton, New Jersey on January 3, 1777, and ending in a small victory for the Colonials. General Lord Cornwallis had left 1,400 British troops under the comm ...
attached to General John Cadwalader's brigade, where they had been assigned by General
George Washington George Washington (February 22, 1732, 1799) was an American military officer, statesman, and Founding Father who served as the first president of the United States from 1789 to 1797. Appointed by the Continental Congress as commander of ...
; by December 1776, Washington was retreating through New Jersey and, "in desperate need of veteran soldiers," had ordered Nicholas and the Marines to attach themselves to the
Continental Army The Continental Army was the army of the United Colonies (the Thirteen Colonies) in the Revolutionary-era United States. It was formed by the Second Continental Congress after the outbreak of the American Revolutionary War, and was establis ...
. The
Battle of Princeton The Battle of Princeton was a battle of the American Revolutionary War, fought near Princeton, New Jersey on January 3, 1777, and ending in a small victory for the Colonials. General Lord Cornwallis had left 1,400 British troops under the comm ...
, where the Marines along with General Cadwalader's brigade were personally rallied by Washington, was the first land combat engagement of the Marines; an estimated 130 marines were present at the battle. At the end of the American Revolution, both the
Continental Navy The Continental Navy was the navy of the United States during the American Revolutionary War and was founded October 13, 1775. The fleet cumulatively became relatively substantial through the efforts of the Continental Navy's patron John Ad ...
and Continental Marines were disbanded in April 1783. The institution was resurrected on 11 July 1798; in preparation for the
Quasi-War The Quasi-War (french: Quasi-guerre) was an undeclared naval war fought from 1798 to 1800 between the United States and the French First Republic, primarily in the Caribbean and off the East Coast of the United States. The ability of Congress ...
with
France France (), officially the French Republic ( ), is a country primarily located in Western Europe. It also comprises of Overseas France, overseas regions and territories in the Americas and the Atlantic Ocean, Atlantic, Pacific Ocean, Pac ...
, Congress created the United States Marine Corps. Marines had been enlisted by the
War Department War Department may refer to: * War Department (United Kingdom) * United States Department of War (1789–1947) See also * War Office, a former department of the British Government * Ministry of defence * Ministry of War * Ministry of Defence * D ...
as early as August 1797 for service in the newly-built
frigate A frigate () is a type of warship. In different eras, the roles and capabilities of ships classified as frigates have varied somewhat. The name frigate in the 17th to early 18th centuries was given to any full-rigged ship built for speed an ...
s authorized by the Congressional "Act to provide a Naval Armament" of 18 March 1794, which specified the numbers of marines to recruit for each frigate. The Marines' most famous action of this period occurred during the First Barbary War (1801–1805) against the
Barbary pirates The Barbary pirates, or Barbary corsairs or Ottoman corsairs, were Muslim pirates and privateers who operated from North Africa, based primarily in the ports of Salé, Rabat, Algiers, Tunis and Tripoli. This area was known in Europe ...
, when
William Eaton William Eaton or Bill Eaton may refer to: * William Eaton (soldier) (1764–1811), United States Army soldier during the Barbary Wars * William Eaton (athlete) (1909–1938), British long-distance runner * William Eaton (guitarist), American luth ...
and First Lieutenant Presley O'Bannon led 8 marines and 500
mercenaries A mercenary, sometimes Pseudonym, also known as a soldier of fortune or hired gun, is a private individual, particularly a soldier, that joins a military conflict for personal profit, is otherwise an outsider to the conflict, and is not a memb ...
in an effort to capture Tripoli. Though they only reached Derna, the action at Tripoli has been immortalized in the
Marines' Hymn The "Marines' Hymn" is the official hymn of the United States Marine Corps, introduced by the first director of the USMC Band, Francesco Maria Scala. Its music originates from an 1867 work by Jacques Offenbach with the lyrics added by an anonymou ...
and the Mameluke sword carried by Marine officers.


War of 1812 and afterward

During the
War of 1812 The War of 1812 (18 June 1812 – 17 February 1815) was fought by the United States of America and its indigenous allies against the United Kingdom and its allies in British North America, with limited participation by Spain in Florida. It be ...
, Marine detachments on Navy ships took part in some of the great frigate duels that characterized the war, which were the first and last engagements of the conflict. Their most significant contribution was holding the center of General
Andrew Jackson Andrew Jackson (March 15, 1767 – June 8, 1845) was an American lawyer, planter, general, and statesman who served as the seventh president of the United States from 1829 to 1837. Before being elected to the presidency, he gained fame as ...
's defensive line at the 1815
Battle of New Orleans The Battle of New Orleans was fought on January 8, 1815 between the British Army under Major General Sir Edward Pakenham and the United States Army under Brevet Major General Andrew Jackson, roughly 5 miles (8 km) southeast of the Frenc ...
, the final major battle and one of the most one-sided engagements of the war. With widespread news of the battle and the capture of HMS ''Cyane'', HMS ''Levant'' and HMS ''Penguin'', the final engagements between British and U.S. forces, the Marines had gained a reputation as expert
marksmen A marksman is a person who is skilled in precision shooting using projectile weapons (in modern days most commonly an accurized scoped long gun such as designated marksman rifle or a sniper rifle) to shoot at high-value targets at longer-than-u ...
, especially in defensive and ship-to-ship actions. They played a large role in the 1813 defense of Sacket's Harbor, New York and Norfolk and Portsmouth, Virginia, also taking part in the 1814 defense of Plattsburgh in the
Champlain Valley The Champlain Valley is a region of the United States around Lake Champlain in Vermont and New York extending north slightly into Quebec, Canada. It is part of the St. Lawrence River drainage basin, drained northward by the Richelieu River ...
during one of the final British offensives along the Canadian-U.S. border. The
battle of Bladensburg The Battle of Bladensburg was a battle of the Chesapeake campaign of the War of 1812, fought on 24 August 1814 at Bladensburg, Maryland, northeast of Washington, D.C. Called "the greatest disgrace ever dealt to American arms," a British for ...
, fought 24 August 1814, was one of the worst days for American arms, though a few units and individuals performed heroic service. Notable among them were Commodore Joshua Barney's 500 sailors and the 120 marines under Captain Samuel Miller USMC, who inflicted the bulk of British casualties and were the only effective American resistance during the battle. A final desperate Marine counter attack, with the fighting at close quarters, however was not enough; Barney and Miller's forces were overrun. In all of 114 marines, 11 were killed and 16 wounded. During the battle Captain Miller's arm was badly wounded, for his gallant service in action, Miller was brevetted to the rank of Major USMC. After the war, the Marine Corps fell into a malaise that ended with the appointment of
Archibald Henderson Archibald Henderson (January 21, 1783 – January 6, 1859) was the longest-serving Commandant of the Marine Corps, serving from 1820 to 1859. His name is learned by all recruits at Marine recruit training (Boot Camp) as the "Grand old man of th ...
as its fifth commandant in 1820. Under his tenure, the Corps took on expeditionary duties in the Caribbean, the
Gulf of Mexico The Gulf of Mexico ( es, Golfo de México) is an ocean basin and a marginal sea of the Atlantic Ocean, largely surrounded by the North American continent. It is bounded on the northeast, north and northwest by the Gulf Coast of the United ...
,
Key West Key West ( es, Cayo Hueso) is an island in the Straits of Florida, within the U.S. state of Florida. Together with all or parts of the separate islands of Dredgers Key, Fleming Key, Sunset Key, and the northern part of Stock Island, it cons ...
, West Africa, the
Falkland Islands The Falkland Islands (; es, Islas Malvinas, link=no ) is an archipelago in the South Atlantic Ocean on the Patagonian Shelf. The principal islands are about east of South America's southern Patagonian coast and about from Cape Dubouze ...
, and
Sumatra Sumatra is one of the Sunda Islands of western Indonesia. It is the largest island that is fully within Indonesian territory, as well as the sixth-largest island in the world at 473,481 km2 (182,812 mi.2), not including adjacent i ...
. Commandant Henderson is credited with thwarting President Jackson's attempts to combine and integrate the Marine Corps with the Army. Instead, Congress passed the ''Act for the Better Organization of the Marine Corps'' in 1834, stipulating that the Corps was part of the Department of the Navy as a sister service to the Navy. This would be the first of many times that the independent existence of the Corps was challenged. Commandant Henderson volunteered the Marines for service in the
Seminole Wars The Seminole Wars (also known as the Florida Wars) were three related military conflicts in Florida between the United States and the Seminole, citizens of a Native American nation which formed in the region during the early 1700s. Hostilities ...
of 1835, personally leading nearly half of the entire Corps (two battalions) to war. A decade later, in the
Mexican–American War The Mexican–American War, also known in the United States as the Mexican War and in Mexico as the (''United States intervention in Mexico''), was an armed conflict between the United States and Mexico from 1846 to 1848. It followed the ...
(1846–1848), the Marines made their famed assault on Chapultepec Palace in Mexico City, which would be later celebrated as the "Halls of Montezuma" in the Marines' Hymn. In fairness to the U.S. Army, most of the troops who made the final assault at the Halls of Montezuma were soldiers and not marines. The Americans forces were led by Army General
Winfield Scott Winfield Scott (June 13, 1786May 29, 1866) was an American military commander and political candidate. He served as a general in the United States Army from 1814 to 1861, taking part in the War of 1812, the Mexican–American War, the early s ...
. Scott organized two storming parties of about 250 men each for 500 men total including 40 marines. In the 1850s, the Marines engaged in service in Panama and Asia and were attached to Commodore Matthew Perry's
East India Squadron The East India Squadron, or East Indies Squadron, was a squadron of American ships which existed in the nineteenth century, it focused on protecting American interests in the Far East while the Pacific Squadron concentrated on the western coast ...
on its historic trip to the Far East.


American Civil War to World War I

The Marine Corps played a small role in the
Civil War A civil war or intrastate war is a war between organized groups within the same state (or country). The aim of one side may be to take control of the country or a region, to achieve independence for a region, or to change government polici ...
(1861–1865); their most prominent task was
blockade A blockade is the act of actively preventing a country or region from receiving or sending out food, supplies, weapons, or communications, and sometimes people, by military force. A blockade differs from an embargo or sanction, which are leg ...
duty. As more and more states seceded from the Union, about a third of the Corps's officers left the United States to join the Confederacy and form the Confederate States Marine Corps, which ultimately played little part in the war. The battalion of recruits formed for the
First Battle of Bull Run The First Battle of Bull Run (the name used by Union forces), also known as the Battle of First Manassas
performed poorly, retreating with the rest of the Union forces. Blockade duty included sea-based amphibious operations to secure forward bases. In late November 1861, Marines and sailors landed a reconnaissance in force from at Tybee Island, Georgia, to occupy the lighthouse and
Martello tower Martello towers, sometimes known simply as Martellos, are small defensive forts that were built across the British Empire during the 19th century, from the time of the French Revolutionary Wars onwards. Most were coastal forts. They stand u ...
on the northern end of the island. It would later be the Army base for bombardment of Fort Pulaski. In April and May 1862, Marines participated in the capture and occupation of New Orleans and the occupation of Baton Rouge, Louisiana, key events in the war that helped secure Union control of the lower
Mississippi River The Mississippi River is the List of longest rivers of the United States (by main stem), second-longest river and chief river of the second-largest Drainage system (geomorphology), drainage system in North America, second only to the Hudson B ...
basin and denied the Confederacy a major port and naval base on the
Gulf Coast The Gulf Coast of the United States, also known as the Gulf South, is the coast, coastline along the Southern United States where they meet the Gulf of Mexico. The list of U.S. states and territories by coastline, coastal states that have a shor ...
. The remainder of the 19th century was marked by declining strength and introspection about the mission of the Marine Corps. The Navy's transition from
sail A sail is a tensile structure—which is made from fabric or other membrane materials—that uses wind power to propel sailing craft, including sailing ships, sailboats, windsurfers, ice boats, and even sail-powered land vehicles. Sails ma ...
to
steam Steam is a substance containing water in the gas phase, and sometimes also an aerosol of liquid water droplets, or air. This may occur due to evaporation or due to boiling, where heat is applied until water reaches the enthalpy of vaporizatio ...
put into question the need for Marines on naval ships. Meanwhile, Marines served as a convenient resource for interventions and landings to protect American interests overseas. The Corps was involved in over 28 separate interventions in the 30 years from the end of the American Civil War to the end of 19th century. They were called upon to stem political and labor unrest within the United States. Under Commandant
Jacob Zeilin Jacob Zeilin (July 16, 1806 – November 18, 1880) was the United States Marine Corps' first non- brevet flag officer. He served as the seventh commandant of the United States Marine Corps, from 1864 to 1876. Early life and education Zeilin was ...
's tenure, Marine customs and traditions took shape: the Corps adopted the Marine Corps emblem on 19 November 1868. It was during this time that "The Marines' Hymn" was first heard. Around 1883, the Marines adopted their current motto "''
Semper fidelis ''Semper fidelis'' () is a Latin phrase that means "always faithful" or "always loyal" (Fidelis or Fidelity). It is the motto of the United States Marine Corps, usually shortened to Semper Fi. It is also in use as a motto for towns, families, ...
''" (''Always Faithful'').
John Philip Sousa John Philip Sousa ( ; November 6, 1854 – March 6, 1932) was an American composer and conductor of the late Romantic era known primarily for American military marches. He is known as "The March King" or the "American March King", to dis ...
, the musician and composer, enlisted as a Marine apprentice at age 13, serving from 1867 until 1872, and again from 1880 to 1892 as the leader of the Marine Band. During the
Spanish–American War , partof = the Philippine Revolution, the decolonization of the Americas, and the Cuban War of Independence , image = Collage infobox for Spanish-American War.jpg , image_size = 300px , caption = (clock ...
(1898), Marines led American forces ashore in the Philippines, Cuba, and
Puerto Rico Puerto Rico (; abbreviated PR; tnq, Boriken, ''Borinquen''), officially the Commonwealth of Puerto Rico ( es, link=yes, Estado Libre Asociado de Puerto Rico, lit=Free Associated State of Puerto Rico), is a Caribbean island and unincorporated ...
, demonstrating their readiness for deployment. At
Guantánamo Bay Guantánamo Bay ( es, Bahía de Guantánamo) is a bay in Guantánamo Province at the southeastern end of Cuba. It is the largest harbor on the south side of the island and it is surrounded by steep hills which create an enclave that is cut o ...
, Cuba, the Marines seized an advanced naval base that remains in use today. Between 1899 and 1916, the Corps continued its record of participation in foreign expeditions, including the
Philippine–American War The Philippine–American War or Filipino–American War ( es, Guerra filipina-estadounidense, tl, Digmaang Pilipino–Amerikano), previously referred to as the Philippine Insurrection or the Tagalog Insurgency by the United States, was an arm ...
, the
Boxer Rebellion The Boxer Rebellion, also known as the Boxer Uprising, the Boxer Insurrection, or the Yihetuan Movement, was an Xenophobia, anti-foreign, anti-colonialism, anti-colonial, and Persecution of Christians#China, anti-Christian uprising in China ...
in China, Panama, the Cuban Pacifications, the Perdicaris incident in Morocco,
Veracruz Veracruz (), formally Veracruz de Ignacio de la Llave (), officially the Free and Sovereign State of Veracruz de Ignacio de la Llave ( es, Estado Libre y Soberano de Veracruz de Ignacio de la Llave), is one of the 31 states which, along with Me ...
,
Santo Domingo , total_type = Total , population_density_km2 = auto , timezone = AST (UTC −4) , area_code_type = Area codes , area_code = 809, 829, 849 , postal_code_type = Postal codes , postal_code = 10100–10699 ( Distrito Nacional) , webs ...
, and the
Banana Wars The Banana Wars were a series of conflicts that consisted of military occupation, police action, and intervention by the United States in Central America and the Caribbean between the end of the Spanish–American War in 1898 and the inceptio ...
in
Haiti Haiti (; ht, Ayiti ; French: ), officially the Republic of Haiti (); ) and formerly known as Hayti, is a country located on the island of Hispaniola in the Greater Antilles archipelago of the Caribbean Sea, east of Cuba and Jamaica, and s ...
and
Nicaragua Nicaragua (; ), officially the Republic of Nicaragua (), is the largest country in Central America, bordered by Honduras to the north, the Caribbean to the east, Costa Rica to the south, and the Pacific Ocean to the west. Managua is the coun ...
; the experiences gained in counter-insurgency and guerrilla operations during this period were consolidated into the ''Small Wars Manual''.


World War I

During
World War I World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was List of wars and anthropogenic disasters by death toll, one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, ...
, Marines served as a part of the
American Expeditionary Force The American Expeditionary Forces (A. E. F.) was a formation of the United States Army on the Western Front of World War I. The A. E. F. was established on July 5, 1917, in France under the command of General John J. Pershing. It fought along ...
under General John J. Pershing when America entered into the war on 6 April 1917. The Marine Corps had a deep pool of officers and
non-commissioned officer A non-commissioned officer (NCO) is a military officer who has not pursued a commission. Non-commissioned officers usually earn their position of authority by promotion through the enlisted ranks. (Non-officers, which includes most or all enli ...
s with battle experience and thus experienced a large expansion. The U.S. Marine Corps entered the war with 511 officers and 13,214 enlisted personnel and by 11 November 1918 had reached a strength of 2,400 officers and 70,000 enlisted. African-Americans were entirely excluded from the Marine Corps during this conflict.
Opha May Johnson Opha May Johnson (née Jacob, May 4, 1878 – August 11, 1955) was the first woman known to have enlisted in the United States Marine Corps. She joined the Marine Corps Reserve on August 13, 1918, officially becoming the first female Marine. Ea ...
was the first woman to enlist in the Marines; she joined the
Marine Corps Reserve The Marine Forces Reserve (MARFORRES or MFR), also known as the United States Marine Corps Reserve (USMCR) and the U.S. Marine Corps Forces Reserve, is the reserve force of the United States Marine Corps. It is the largest command, by assigned p ...
in 1918 during World War I, officially becoming the first female Marine. From then until the end of World War I, 305 women enlisted in the Corps. During the
Battle of Belleau Wood The Battle of Belleau Wood (1–26 June 1918) occurred during the German spring offensive in World War I, near the Marne River in France. The battle was fought between the U.S. 2nd (under the command of Major General Omar Bundy) and 3rd Divisi ...
in 1918, the Marines and U.S. media reported that Germans had nicknamed them ''Teufel Hunden,'' meaning "
Devil Dog Devil Dog is a nickname for a United States Marine coined during World War I. History Multiple publications of the United States Marine Corps claim that the nickname "Teufel Hunden"—"Devil Dogs" in English—was bestowed upon the ...
s" for their reputation as
shock troops Shock troops or assault troops are formations created to lead an attack. They are often better trained and equipped than other infantry, and expected to take heavy casualties even in successful operations. "Shock troop" is a calque, a loose tra ...
and marksmen at ranges up to 900 meters; there is no evidence of this in German records (as ''Teufelshunde'' would be the proper German phrase). Nevertheless, the name stuck in U.S. Marine lore. Between the World Wars, the Marine Corps was headed by Commandant
John A. Lejeune John Archer Lejeune (; January 10, 1867 – November 20, 1942) was a United States Marine Corps lieutenant general and the 13th Commandant of the Marine Corps. Lejeune served for nearly 40 years in the military, and commanded the U.S. Army's 2n ...
, and under his leadership, the Corps studied and developed amphibious techniques that would be of great use in World War II. Many officers, including Lieutenant Colonel Earl Hancock "Pete" Ellis, foresaw a war in the Pacific with
Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the n ...
and undertook preparations for such a conflict. Through 1941, as the prospect of war grew, the Corps pushed urgently for joint amphibious exercises with the Army and acquired amphibious equipment that would prove of great use in the upcoming conflict.


World War II

In
World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the World War II by country, vast majority of the world's countries—including all of the great power ...
, the Marines performed a central role in the
Pacific War The Pacific War, sometimes called the Asia–Pacific War, was the theater of World War II that was fought in Asia, the Pacific Ocean, the Indian Ocean, and Oceania. It was geographically the largest theater of the war, including the vas ...
, along with the U.S. Army. The battles of
Guadalcanal Guadalcanal (; indigenous name: ''Isatabu'') is the principal island in Guadalcanal Province of Solomon Islands, located in the south-western Pacific, northeast of Australia. It is the largest island in the Solomon Islands by area, and the se ...
, Bougainville,
Tarawa Tarawa is an atoll and the capital of the Republic of Kiribati,Kiribati
''
Guam Guam (; ch, Guåhan ) is an organized, unincorporated territory of the United States in the Micronesia subregion of the western Pacific Ocean. It is the westernmost point and territory of the United States (reckoned from the geographic cent ...
,
Tinian Tinian ( or ; old Japanese name: 天仁安島, ''Tenian-shima'') is one of the three principal islands of the Commonwealth of the Northern Mariana Islands. Together with uninhabited neighboring Aguiguan, it forms Tinian Municipality, one of the ...
, Cape Gloucester,
Saipan Saipan ( ch, Sa’ipan, cal, Seipél, formerly in es, Saipán, and in ja, 彩帆島, Saipan-tō) is the largest island of the Northern Mariana Islands, a Commonwealth (U.S. insular area), commonwealth of the United States in the western Pa ...
,
Peleliu Peleliu (or Beliliou) is an island in the island nation of Palau. Peleliu, along with two small islands to its northeast, forms one of the sixteen states of Palau. The island is notable as the location of the Battle of Peleliu in World War II. H ...
,
Iwo Jima Iwo Jima (, also ), known in Japan as , is one of the Japanese Volcano Islands and lies south of the Bonin Islands. Together with other islands, they form the Ogasawara Archipelago. The highest point of Iwo Jima is Mount Suribachi at high. ...
, and
Okinawa is a Prefectures of Japan, prefecture of Japan. Okinawa Prefecture is the southernmost and westernmost prefecture of Japan, has a population of 1,457,162 (as of 2 February 2020) and a geographic area of 2,281 Square kilometre, km2 (880 sq mi). ...
saw fierce fighting between marines and the
Imperial Japanese Army The was the official ground-based armed force of the Empire of Japan from 1868 to 1945. It was controlled by the Imperial Japanese Army General Staff Office and the Ministry of the Army, both of which were nominally subordinate to the Emper ...
. Some 600,000 Americans served in the U.S. Marine Corps in World War II. The Battle of Iwo Jima, which began on 19 February 1945, was arguably the most famous Marine engagement of the war. The Japanese had learned from their defeats in the
Marianas Campaign The Mariana and Palau Islands campaign, also known as Operation Forager, was an offensive launched by United States forces against Imperial Japanese forces in the Mariana Islands and Palau in the Pacific Ocean between June and November 1944 d ...
and prepared many fortified positions on the island including pillboxes and network of tunnels. The Japanese put up fierce resistance, but American forces reached the summit of
Mount Suribachi is a -high mountain on the southwest end of Iwo Jima in the northwest Pacific Ocean under the administration of Ogasawara Subprefecture, Tokyo Metropolis, Japan. The mountain's name derives from its shape, resembling a ''suribachi'' or grindin ...
on 23 February. The mission was accomplished with high losses of 26,000 American casualties and 22,000 Japanese. The Marines played a comparatively minor role in the
European theater The European theatre of World War II was one of the two main theatres of combat during World War II. It saw heavy fighting across Europe for almost six years, starting with Germany's invasion of Poland on 1 September 1939 and ending with the ...
. Nonetheless, they did continue to provide security detachments to U.S. embassies and ships, contributed personnel to small
special ops Special operations (S.O.) are military activities conducted, according to NATO, by "specially designated, organized, selected, trained, and equipped forces using unconventional techniques and modes of employment". Special operations may include ...
teams dropped into
Nazi Nazism ( ; german: Nazismus), the common name in English for National Socialism (german: Nationalsozialismus, ), is the far-right totalitarian political ideology and practices associated with Adolf Hitler and the Nazi Party (NSDAP) in ...
-occupied Europe as part of
Office of Strategic Services The Office of Strategic Services (OSS) was the intelligence agency of the United States during World War II. The OSS was formed as an agency of the Joint Chiefs of Staff (JCS) to coordinate espionage activities behind enemy lines for all branc ...
(OSS, the precursor to the
CIA The Central Intelligence Agency (CIA ), known informally as the Agency and historically as the Company, is a civilian foreign intelligence service of the federal government of the United States, officially tasked with gathering, processing, ...
) missions, and acted as staff planners and trainers for U.S. Army amphibious operations, including the
Normandy landings The Normandy landings were the landing operations and associated airborne operations on Tuesday, 6 June 1944 of the Allied invasion of Normandy in Operation Overlord during World War II. Codenamed Operation Neptune and often referred to as ...
. By the end of the war, the Corps had expanded from two brigades to six divisions, five air wings, and supporting troops, totaling about 485,000 marines. In addition, 20 defense battalions and a
parachute battalion ''Parachute Battalion'' is a 1941 war film directed by Leslie Goodwins and stars Robert Preston and Nancy Kelly. The supporting cast includes Edmond O'Brien, Harry Carey, and Buddy Ebsen. Plot Three men enlist in the United States Army in the ...
were raised. Nearly 87,000 marines were casualties during World War II (including nearly 20,000 killed), and 82 were awarded the
Medal of Honor The Medal of Honor (MOH) is the United States Armed Forces' highest military decoration and is awarded to recognize American soldiers, sailors, marines, airmen, guardians and coast guardsmen who have distinguished themselves by acts of val ...
. In 1942, the Navy
Seabee , colors = , mascot = Bumblebee , battles = Guadalcanal, Bougainville, Cape Gloucester, Los Negros, Guam, Peleliu, Tarawa, Kwajalein, Saipan, Tinian, Iwo Jima, Philippin ...
s were created with the Marine Corps providing their organization and military training. Many Seabee units were issued the USMC standard issue and were re-designated "Marine". Despite the Corps giving them their military organization, military training, issuing them uniforms and redesignating their units, the Seabees remained Navy. USMC historian Gordon L. Rottmann writes that one of the "Navy's biggest contributions to the Marine Corps during WWII was the creation of the Seabees." Despite
Secretary of the Navy The secretary of the Navy (or SECNAV) is a statutory officer () and the head (chief executive officer) of the Department of the Navy, a military department (component organization) within the United States Department of Defense. By law, the se ...
James Forrestal James Vincent Forrestal (February 15, 1892 – May 22, 1949) was the last Cabinet-level United States Secretary of the Navy and the first United States Secretary of Defense. Forrestal came from a very strict middle-class Irish Catholic fami ...
's prediction that the Marine flag raising at Iwo Jima meant "a Marine Corps for the next five hundred years", the Corps faced an immediate institutional crisis following the war because of a suddenly shrunken budget. Army generals pushing for a strengthened and reorganized defense establishment attempted to fold the Marine mission and assets into the Navy and Army. Drawing on hastily assembled Congressional support, and with the assistance of the so-called "
Revolt of the Admirals The "Revolt of the Admirals" was a policy and funding dispute within the United States government during the Cold War in 1949, involving a number of retired and active-duty United States Navy admirals. These included serving officers Admiral L ...
", the Marine Corps rebuffed such efforts to dismantle the Corps, resulting in statutory protection of the Marine Corps in the
National Security Act of 1947 The National Security Act of 1947 ( Pub.L.br>80-253 61 Stat.br>495 enacted July 26, 1947) was a law enacting major restructuring of the United States government's military and intelligence agencies following World War II. The majority of the pro ...
. Chapter 7, ''The Marines' Push Button'' pp. 113–119. Shortly afterward, in 1952 the Douglas–Mansfield Act afforded the commandant an equal voice with the
Joint Chiefs of Staff The Joint Chiefs of Staff (JCS) is the body of the most senior uniformed leaders within the United States Department of Defense, that advises the president of the United States, the secretary of defense, the Homeland Security Council and the ...
on matters relating to the Marines and established the structure of three active divisions and air wings that remain today.


Korean War

The
Korean War {{Infobox military conflict , conflict = Korean War , partof = the Cold War and the Korean conflict , image = Korean War Montage 2.png , image_size = 300px , caption = Clockwise from top:{ ...
(1950–1953) saw the hastily formed
Provisional Marine Brigade The 1st Provisional Marine Brigade was a Marine (military), Marine infantry brigade of the United States Marine Corps (USMC) that existed periodically from 1912 to 1950. It was an ad hoc unit formed for specific operations and not considered a "p ...
holding the defensive line at the
Pusan Perimeter The Battle of the Pusan Perimeter ( ko, 부산 교두보 전투) was a large-scale battle between United Nations Command (UN) and North Korean forces lasting from August 4 to September 18, 1950. It was one of the first major engagements of th ...
. To execute a
flanking maneuver In military tactics, a flanking maneuver is a movement of an armed force around an enemy force's side, or flank, to achieve an advantageous position over it. Flanking is useful because a force's fighting strength is typically concentrated i ...
, General
Douglas MacArthur Douglas MacArthur (26 January 18805 April 1964) was an American military leader who served as General of the Army for the United States, as well as a field marshal to the Philippine Army. He had served with distinction in World War I, was ...
called on United Nations forces, including U.S. marines, to make an amphibious landing at Inchon. The successful landing resulted in the collapse of North Korean lines and the pursuit of North Korean forces north near the
Yalu River The Yalu River, known by Koreans as the Amrok River or Amnok River, is a river on the border between North Korea and China. Together with the Tumen River to its east, and a small portion of Paektu Mountain, the Yalu forms the border between ...
until the entrance of the People's Republic of China into the war. Chinese troops surrounded, surprised, and overwhelmed the overextended and outnumbered American forces. The U.S. Army's X Corps, which included the
1st Marine Division The 1st Marine Division (1st MARDIV) is a Marine division of the United States Marine Corps headquartered at Marine Corps Base Camp Pendleton, California. It is the ground combat element of the I Marine Expeditionary Force (I MEF). It is th ...
and the Army's 7th Infantry Division regrouped and inflicted heavy casualties during their fighting withdrawal to the coast, known as the
Battle of Chosin Reservoir The Battle of Chosin Reservoir, also known as the Chosin Reservoir Campaign or the Battle of Lake Changjin (), was an important battle in the Korean War. The name "Chosin" is derived from the Japanese pronunciation "''Chōshin'', instead of th ...
. The fighting calmed after the Battle of the Chosin Reservoir, but late in March 1953, the relative quiet of the war was broken when the
People's Liberation Army The People's Liberation Army (PLA) is the principal military force of the China, People's Republic of China and the armed wing of the Chinese Communist Party (CCP). The PLA consists of five Military branch, service branches: the People's ...
launched a massive offensive on three outposts manned by the
5th Marine Regiment The 5th Marine Regiment (also referred to as "5th Marines") is an infantry regiment of the United States Marine Corps based at Marine Corps Base Camp Pendleton, California. It is the most highly decorated regiment in the Marine Corps and falls u ...
. These outposts were codenamed "Reno", "Vegas", and "Carson". The campaign was collectively known as the Nevada Cities Campaign. There was brutal fighting on Reno hill, which was eventually captured by the Chinese. Although Reno was lost, the 5th Marines held both Vegas and Carson through the rest of the campaign. In this one campaign, the Marines suffered approximately 1,000 casualties and might have suffered much more without the U.S. Army's
Task Force Faith The Regimental Combat Team 31 (RCT-31), commonly referred to as Task Force Faith of the "Chosin Few", is a United States Army unit known for its role in the Battle of Chosin Reservoir during the Korean War where 90-95% of its force was killed, wo ...
. Marines would continue a battle of attrition around the 38th Parallel until the 1953 armistice. During the war, the Corps expanded from 75,000 regulars to a force of 261,000 marines, mostly reservists; 30,544 marines were killed or wounded during the war, and 42 were awarded the
Medal of Honor The Medal of Honor (MOH) is the United States Armed Forces' highest military decoration and is awarded to recognize American soldiers, sailors, marines, airmen, guardians and coast guardsmen who have distinguished themselves by acts of val ...
.


Vietnam War

The Marine Corps served in the
Vietnam War The Vietnam War (also known by #Names, other names) was a conflict in Vietnam, Laos, and Cambodia from 1 November 1955 to the fall of Saigon on 30 April 1975. It was the second of the Indochina Wars and was officially fought between North Vie ...
, taking part in such battles as the
Battle of Hue A battle is an occurrence of combat in warfare between opposing military units of any number or size. A war usually consists of multiple battles. In general, a battle is a military engagement that is well defined in duration, area, and force ...
and the
Battle of Khe Sanh The Battle of Khe Sanh (21 January – 9 July 1968) was conducted in the Khe Sanh area of northwestern Quảng Trị Province, Republic of Vietnam (South Vietnam), during the Vietnam War. The main US forces defending Khe Sanh Combat Base (KSC ...
in 1968. Individuals from the USMC generally operated in the Northern I Corps Regions of
South Vietnam South Vietnam, officially the Republic of Vietnam ( vi, Việt Nam Cộng hòa), was a state in Southeast Asia that existed from 1955 to 1975, the period when the southern portion of Vietnam was a member of the Western Bloc during part of th ...
. While there, they were constantly engaged in a guerrilla war against the
Viet Cong , , war = the Vietnam War , image = FNL Flag.svg , caption = The flag of the Viet Cong, adopted in 1960, is a variation on the flag of North Vietnam. Sometimes the lower stripe was green. , active ...
, along with an intermittent conventional war against the
North Vietnamese Army The People's Army of Vietnam (PAVN; vi, Quân đội nhân dân Việt Nam, QĐNDVN), also recognized as the Vietnam People's Army (VPA) or the Vietnamese Army (), is the military force of the Socialist Republic of Vietnam and the armed wi ...
, this made the Marine Corps known throughout Vietnam and gained a frightening reputation from the Viet Cong. Portions of the Corps were responsible for the less-known Combined Action Program that implemented unconventional techniques for counter-insurgency and worked as military advisers to the
Republic of Vietnam Marine Corps The Republic of Vietnam Marine Division (RVNMD, vi, Sư Đoàn Thủy Quân Lục Chiến QLC was part of the armed forces of South Vietnam. It was established by Ngo Dinh Diem in 1954 when he was Prime Minister of the State of Vietnam, which bec ...
. Marines were withdrawn in 1971 and returned briefly in 1975 to evacuate
Saigon , population_density_km2 = 4,292 , population_density_metro_km2 = 697.2 , population_demonym = Saigonese , blank_name = GRP (Nominal) , blank_info = 2019 , blank1_name = – Total , blank1_ ...
and attempt a rescue of the crew of the SS ''Mayaguez''. Vietnam was the longest war up to that time for the Marines; by its end, 13,091 had been killed in action,Official Navy figures number the marine deaths at 13,091. This source provides a number of 14,837. 51,392 had been wounded, and 57 Medals of Honor had been awarded. Because of policies concerning rotation, more marines were deployed for service during Vietnam than World War II. While recovering from Vietnam, the Corps hit a detrimental low point in its service history caused by
courts-martial A court-martial or court martial (plural ''courts-martial'' or ''courts martial'', as "martial" is a postpositive adjective) is a military court or a trial conducted in such a court. A court-martial is empowered to determine the guilt of memb ...
and non-judicial punishments related partially to increased unauthorized absences and desertions during the war. Overhaul of the Corps began in the late 1970s, discharging the most delinquent, and once the quality of new recruits improved, the Corps focused on reforming the non-commissioned officer Corps, a vital functioning part of its forces.


Interim: Vietnam War to the War on Terror

After the Vietnam War, the U.S. marines resumed their expeditionary role, participating in the failed 1980 Iran hostage rescue attempt Operation Eagle Claw, the
Operation Urgent Fury The United States invasion of Grenada began at dawn on 25 October 1983. The United States and a Caribbean Peace Force, coalition of six Caribbean nations invaded the island nation of Grenada, north of Venezuela. Codenamed Operation Urgent Fur ...
and the
Operation Just Cause Operation or Operations may refer to: Arts, entertainment and media * ''Operation'' (game), a battery-operated board game that challenges dexterity * Operation (music), a term used in musical set theory * ''Operations'' (magazine), Multi-Ma ...
. On 23 October 1983, the Marine barracks in Beirut was bombed, causing the highest peacetime losses to the Corps in its history (220 marines and 21 other service members were killed) and leading to the American withdrawal from Lebanon. In 1990, marines of the Joint Task Force Sharp Edge saved thousands of lives by evacuating British, French and American nationals from the violence of the Liberian Civil War. During the
Persian Gulf War The Gulf War was a 1990–1991 armed campaign waged by a Coalition of the Gulf War, 35-country military coalition in response to the Iraqi invasion of Kuwait. Spearheaded by the United States, the coalition's efforts against Ba'athist Iraq, ...
of 1990 to 1991, Marine task forces formed for Operation Desert Shield and later liberated Kuwait, along with Coalition forces, in Operation Desert Storm. Marines participated in combat operations in Somalia (1992–1995) during Operations Restore Hope, Restore Hope II, and United Shield to provide humanitarian relief. In 1997, marines took part in
Operation Silver Wake Operation Silver Wake was a non-combatant evacuation operation (NEO) led by the United States to evacuate American citizens, noncombatants and designated third country nationals from Albania in March 1997. The operation was performed by U.S. M ...
, the evacuation of American citizens from the U.S. Embassy in
Tirana Tirana ( , ; aln, Tirona) is the capital and largest city of Albania. It is located in the centre of the country, enclosed by mountains and hills with Dajti rising to the east and a slight valley to the northwest overlooking the Adriatic Sea ...
, Albania.


Global War on Terrorism

Following the attacks on 11 September 2001, President George W. Bush announced the
Global War on Terrorism The war on terror, officially the Global War on Terrorism (GWOT), is an ongoing international counterterrorism military campaign initiated by the United States following the September 11 attacks. The main targets of the campaign are militant ...
. The stated objective of the Global War on Terror is "the defeat of
Al-Qaeda Al-Qaeda (; , ) is an Islamic extremist organization composed of Salafist jihadists. Its members are mostly composed of Arabs, but also include other peoples. Al-Qaeda has mounted attacks on civilian and military targets in various countr ...
, other terrorist groups and any nation that supports or harbors terrorists". Since then, the Marine Corps, alongside the other military services, has engaged in global operations around the world in support of that mission. In spring 2009, President
Barack Obama Barack Hussein Obama II ( ; born August 4, 1961) is an American politician who served as the 44th president of the United States from 2009 to 2017. A member of the Democratic Party (United States), Democratic Party, Obama was the first Af ...
's goal of reducing spending in the Defense Department was led by Secretary
Robert Gates Robert Michael Gates (born September 25, 1943) is an American intelligence analyst and university president who served as the 22nd United States secretary of defense from 2006 to 2011. He was originally appointed by president George W. Bush a ...
in a series of budget cuts that did not significantly change the Corps's budget and programs, cutting only the
VH-71 Kestrel The Lockheed Martin VH-71 Kestrel was a variant of the AgustaWestland AW101 (formerly the EH101) that was being manufactured to replace the United States Marine Corps' Marine One U.S. Presidential transport fleet. Originally marketed for vario ...
and resetting the VXX program. However, the
National Commission on Fiscal Responsibility and Reform The National Commission on Fiscal Responsibility and Reform (often called Simpson–Bowles or Bowles–Simpson from the names of co-chairs Alan Simpson and Erskine Bowles; or NCFRR) was a bipartisan Presidential Commission on deficit reduction, ...
singled the Corps out for the brunt of a series of recommended cuts in late 2010. In light of
budget sequestration in 2013 The 2013 budget sequestration refers to the automatic spending cuts to United States federal government spending in particular categories of outlays that were initially set to begin on January 1, 2013, as a fiscal policy as a result of Budget ...
, General James Amos set a goal of a force of 174,000 Marines. He testified that this was the minimum number that would allow for an effective response to even a single contingency operation, but it would reduce the peacetime ratio of time at home bases to time deployed down to a historical low level.


Afghanistan Campaign

Marines and other American forces began staging in Pakistan and Uzbekistan on the border of Afghanistan as early as October 2001 in preparation for
Operation Enduring Freedom Operation Enduring Freedom (OEF) was the official name used synonymously by the U.S. government for both the War in Afghanistan (2001–2014) and the larger-scale Global War on Terrorism. On 7 October 2001, in response to the September 11 a ...
. The 15th and
26th Marine Expeditionary Unit The 26th Marine Expeditionary Unit (26th MEU) is one of seven such units currently in existence in the United States Marine Corps. It is an air-ground task force with a strength of about 2,400 personnel when at full strength during a deployment. ...
s were some of the first conventional forces into Afghanistan in support of Operation Enduring Freedom in November 2001. After that, Marine battalions and squadrons rotated through, engaging
Taliban The Taliban (; ps, طالبان, ṭālibān, lit=students or 'seekers'), which also refers to itself by its state (polity), state name, the Islamic Emirate of Afghanistan, is a Deobandi Islamic fundamentalism, Islamic fundamentalist, m ...
and Al-Qaeda forces. Marines of the 24th Marine Expeditionary Unit flooded into the Taliban-held town of
Garmsir Garmsir ( ps, ګرمسير; from Persian گرمسیر, meaning "hot place") is the center of Garmsir District in Helmand Province, Afghanistan. It is situated on the eastern bank of the Helmand River on at 714 m altitude and 63 km southwest ...
in
Helmand Province Helmand (Pashto/Dari: ; ), also known as Hillmand, in ancient times, as Hermand and Hethumand, is one of the 34 provinces of Afghanistan, in the south of the country. It is the largest province by area, covering area. The province contains 13 ...
on 29 April 2008, in the first major American operation in the region in years. In June 2009, 7,000 marines with the
2nd Marine Expeditionary Brigade The 2nd Marine Expeditionary Brigade is a brigade of the United States Marine Corps. It is part of II Marine Expeditionary Force (II MEF). It advertises itself as a "middleweight" crises response force of choice in the European and Southern Com ...
(2nd MEB) deployed to Afghanistan in an effort to improve security and began
Operation Strike of the Sword Operation Strike of the Sword or Operation Khanjar was a US-led offensive in Helmand province in southern Afghanistan. About 4,000 Marines from the 2nd Marine Expeditionary Brigade as well as 650 Afghan troops were involved, supported by NAT ...
the next month. In February 2010, the 2nd MEB launched the largest offensive of the Afghan Campaign since 2001, the
Battle of Marjah Operation Moshtarak (Dari for ''Together'' or ''Joint''), also known as the Battle of Marjah, was an International Security Assistance Force (ISAF) pacification offensive in the town of Marjah, Helmand Province, Afghanistan. It involved a combi ...
, to clear the Taliban from their key stronghold in Helmand Province. After Marjah, marines progressed north up the
Helmand River The Helmand River (also spelled Helmend, or Helmund, Hirmand; Pashto/ Persian: ; Greek: ' (''Etýmandros''); Latin: ') is the longest river in Afghanistan and the primary watershed for the endorheic Sistan Basin. It emerges in the Sanglak ...
and cleared the towns of Kajahki and Sangin. Marines remained in Helmand Province until 2014.


Iraq Campaign

U.S. Marines served in the
Iraq War {{Infobox military conflict , conflict = Iraq War {{Nobold, {{lang, ar, حرب العراق (Arabic) {{Nobold, {{lang, ku, شەڕی عێراق (Kurdish languages, Kurdish) , partof = the Iraq conflict (2003–present), I ...
, along with its sister services. The I Marine Expeditionary Force, along with the U.S. Army's 3rd Infantry Division, spearheaded the
2003 invasion of Iraq The 2003 invasion of Iraq was a United States-led invasion of the Republic of Iraq and the first stage of the Iraq War. The invasion phase began on 19 March 2003 (air) and 20 March 2003 (ground) and lasted just over one month, including ...
. The Marines left Iraq in the summer of 2003 but returned in the beginning of 2004. They were given responsibility for the
Al Anbar Province Al Anbar Governorate ( ar, محافظة الأنبار; ''muḥāfaẓat al-’Anbār''), or Anbar Province, is the largest governorate in Iraq by area. Encompassing much of the country's western territory, it shares borders with Syria, Jordan, ...
, the large desert region to the west of
Baghdad Baghdad (; ar, بَغْدَاد , ) is the capital of Iraq and the second-largest city in the Arab world after Cairo. It is located on the Tigris near the ruins of the ancient city of Babylon and the Sassanid Persian capital of Ctesiphon ...
. During this occupation, the Marines lead assaults on the city of
Fallujah Fallujah ( ar, ٱلْفَلُّوجَة, al-Fallūjah, Iraqi pronunciation: ) is a city in the Iraqi province of Al Anbar, located roughly west of Baghdad on the Euphrates. Fallujah dates from Babylonian times and was host to important Je ...
in April (
Operation Vigilant Resolve The First Battle of Fallujah, code-named Operation Vigilant Resolve, was an operation against militants in Fallujah as well as an attempt to apprehend or kill the perpetrators of the killing of four U.S. contractors in March 2004. The chief cat ...
) and November 2004 (
Operation Phantom Fury The Second Battle of Fallujah, codenamed Operation al-Fajr ( ar, الفجر, ) and Operation Phantom Fury, was an American-led offensive of the Iraq War that lasted roughly 6 weeks, starting 7th November, 2004. Marking the highest point of the ...
) and saw intense fighting in such places as
Ramadi Ramadi ( ar, ٱلرَّمَادِي ''Ar-Ramādī''; also formerly rendered as ''Rumadiyah'' or ''Rumadiya'') is a city in central Iraq, about west of Baghdad and west of Fallujah. It is the capital and largest city of Al Anbar Governorate w ...
, Al-Qa'im and
Hīt Hīt, also spelled ''Heet'' ( ar, هيت), ancient name ''Is'', is an Iraqi city in Al-Anbar province. Hīt lies northwest of Ramadi, the provincial capital. Straddling the Euphrates River, the city of Hīt was originally a small walled town sur ...
. The service's time in Iraq courted controversy with events such as the
Haditha killings The Haditha massacre (also called the Haditha killings or the Haditha incident) was a series of killings on November 19, 2005, in which a group of United States Marines killed 24 unarmed Iraqi civilians. The killings occurred in Haditha, a cit ...
and the
Hamdania incident The Hamdania incident refers to the alleged kidnapping and subsequent murder of an Iraqi man by United States Marines on April 26, 2006, in Al Hamdania, a small village west of Baghdad near Abu Ghraib. An investigation by the Naval Criminal Invest ...
. The
Anbar Awakening The Sons of Iraq ( ar, أبناء العراق ''Abnāʼ al-ʻIrāq'') were coalitions between tribal sheikhs in the Al Anbar province in Iraq as well as former Saddam Hussein's Iraqi military officers that united in 2005 to maintain stability i ...
and 2007 surge reduced levels of violence. The Marine Corps officially ended its role in Iraq on 23 January 2010 when it handed over responsibility for Al Anbar Province to the U.S. Army. Marines returned to Iraq in the summer of 2014 in response to growing violence there.


Operations in Africa

Throughout the Global War on Terrorism, the U.S. Marines have supported operations in Africa to counter Islamic extremism and piracy in the
Red Sea The Red Sea ( ar, البحر الأحمر - بحر القلزم, translit=Modern: al-Baḥr al-ʾAḥmar, Medieval: Baḥr al-Qulzum; or ; Coptic: ⲫⲓⲟⲙ ⲛ̀ϩⲁϩ ''Phiom Enhah'' or ⲫⲓⲟⲙ ⲛ̀ϣⲁⲣⲓ ''Phiom ǹšari''; ...
. In late 2002, Combined Joint Task Force – Horn of Africa was stood up at
Camp Lemonnier Camp Lemonnier is a United States Naval Expeditionary Base, situated next to Djibouti–Ambouli International Airport in Djibouti City, and home to the Combined Joint Task Force – Horn of Africa (CJTF-HOA) of the U.S. Africa Command (USAFRICO ...
, Djibouti to provide regional security. Despite transferring overall command to the Navy in 2006, the Marines continued to operate in the Horn of Africa into 2007.


Organization


Department of the Navy

The Department of the Navy, led by the
Secretary of the Navy The secretary of the Navy (or SECNAV) is a statutory officer () and the head (chief executive officer) of the Department of the Navy, a military department (component organization) within the United States Department of Defense. By law, the se ...
, is a military department of the cabinet-level U.S. Department of Defense that oversees the Marine Corps and the Navy. The most senior Marine officer is the
Commandant Commandant ( or ) is a title often given to the officer in charge of a military (or other uniformed service) training establishment or academy. This usage is common in English-speaking nations. In some countries it may be a military or police ran ...
(unless a Marine officer is the
Chairman of the Joint Chiefs The chairman of the Joint Chiefs of Staff (CJCS) is the presiding officer of the United States Joint Chiefs of Staff (JCS). The chairman is the highest-ranking and most senior military officer in the United States Armed Forces Chairman: app ...
or Vice Chairman of the Joint Chiefs), responsible to the Secretary of the Navy for organizing, recruiting, training, and equipping the Marine Corps so that its forces are ready for deployment under the operational command of the
combatant commanders A unified combatant command (CCMD), also referred to as a combatant command, is a joint military command of the United States Department of Defense that is composed of units from two or more service branches of the United States Armed Forces, an ...
. The Marine Corps is organized into four principal subdivisions:
Headquarters Marine Corps Headquarters Marine Corps (HQMC) is a headquarters staff within the Department of the Navy which includes the offices of the Commandant of the Marine Corps, the Assistant Commandant of the Marine Corps and various staff functions. The function, ...
(HQMC), the Operating Forces, the Supporting Establishment, and the Marine Forces Reserve (MARFORRES or USMCR).


Headquarters Marine Corps

Headquarters Marine Corps (HQMC) consists of the Commandant of the Marine Corps, the Assistant Commandant of the Marine Corps, the Director Marine Corps Staff, the several Deputy Commandants, the Sergeant Major of the Marine Corps, and various special staff officers and Marine Corps agency heads that report directly to either the Commandant or Assistant Commandant. HQMC is supported by the Headquarters and Service Battalion, USMC providing administrative, supply, logistics, training, and services support to the Commandant and his staff.


Operating Forces

The Operating Forces are divided into three categories: Marine Corps Forces (MARFOR) assigned to unified combatant commands, viz., the
Fleet Marine Force The United States Fleet Marine Forces (FMF) are combined general- and special-purpose forces within the United States Department of the Navy that perform offensive amphibious or expeditionary warfare and defensive maritime employment. The Flee ...
s (FMF);
Security Forces Security forces are statutory organizations with internal security mandates. In the legal context of several nations, the term has variously denoted police and military units working in concert, or the role of military and paramilitary forces (su ...
guarding high-risk naval installations; and
Security Guard A security guard (also known as a security inspector, security officer, or protective agent) is a person employed by a government or private party to protect the employing party's assets (property, people, equipment, money, etc.) from a variety ...
detachments at American embassies. Under the "Forces for Unified Commands" memo, in accordance with the
Unified Command Plan A unified combatant command (CCMD), also referred to as a combatant command, is a joint military command of the United States Department of Defense that is composed of units from two or more service branches of the United States Armed Forces, ...
, Marine Corps Forces are assigned to each of the combatant commands at the discretion of the secretary of defense. Since 1991, the Marine Corps has maintained component headquarters at each of the regional unified combatant commands. Marine Corps Forces are divided into Forces Command (MARFORCOM) and Pacific Command (MARFORPAC), each headed by a
lieutenant general Lieutenant general (Lt Gen, LTG and similar) is a three-star military rank (NATO code OF-8) used in many countries. The rank traces its origins to the Middle Ages, where the title of lieutenant general was held by the second-in-command on th ...
dual-posted as the commanding general of either FMF Atlantic (FMFLANT) or FMF Pacific (FMFPAC), respectively. MARFORCOM/FMFLANT has operational control of the
II Marine Expeditionary Force The II Marine Expeditionary Force (II MEF) is a Marine Air-Ground Task Force consisting of ground, air and logistics forces capable of projecting offensive combat power ashore while sustaining itself in combat without external assistance for a ...
; MARFORPAC/FMFPAC has operational control of the I Marine Expeditionary Force and
III Marine Expeditionary Force III Marine Expeditionary Force (III MEF) is a formation of the Marine Air-Ground Task Force of the United States Marine Corps. It is forward-deployed and able to rapidly conduct operations across the spectrum from humanitarian assistance and ...
.


Marine Air-Ground Task Force

The basic framework for deployable Marine units is the
Marine Air-Ground Task Force Marine Air-Ground Task Force (MAGTF, pronounced MAG-TAF) is a term used by the United States Marine Corps to describe the principal organization for all missions across the range of military operations. MAGTFs are a balanced air-ground, combined a ...
(MAGTF), a flexible structure of varying size. A MAGTF integrates a ground combat element (GCE), an aviation combat element (ACE), and a logistics combat element (LCE) under a common
command element In the United States Marine Corps, the command element (CE) is the command and control force of a Marine Air-Ground Task Force (MAGTF). It provides C3I for the MAGTF. __TOC__ Role within the MAGTF The Command Element (CE), a headquarters unit ...
(CE), capable of operating independently or as part of a larger coalition. The MAGTF structure reflects a strong preference in the Corps towards self-sufficiency and a commitment to
combined arms Combined arms is an approach to warfare that seeks to integrate different combat arms of a military to achieve mutually complementary effects (for example by using infantry and armour in an urban environment in which each supports the other) ...
, both essential assets to an expeditionary force. The Marine Corps has a wariness and distrust of reliance on its sister services and towards joint operations in general.


Supporting Establishment

The Supporting Establishment includes the Combat Development Command, the Logistics Command, the Systems Command, the Recruiting Command, the Installations Command, the Marine Band, and the Marine Drum and Bugle Corps.


Marine Corps bases and stations

The Marine Corps operates many major bases, 14 of which host operating forces, 7 support and training installations, as well as satellite facilities. Marine Corps bases are concentrated around the locations of the Marine Expeditionary Forces, though reserve units are scattered throughout the United States. The principal bases are
Camp Pendleton Marine Corps Base Camp Pendleton is the major West Coast base of the United States Marine Corps and is one of the largest Marine Corps bases in the United States. It is on the Southern California coast in San Diego County and is bordered by O ...
on the West Coast, home to I Marine Expeditionary Force;
Camp Lejeune Marine Corps Base Camp Lejeune () is a United States military training facility in Jacksonville, North Carolina. Its of beaches make the base a major area for amphibious assault training, and its location between two deep-water ports ( Wilming ...
on the East Coast, home to II Marine Expeditionary Force; and
Camp Butler Marine Corps Base Camp Smedley D. Butler (or simply Butler Marine Base) is a United States Marine Corps base located in the Japanese prefecture of Okinawa. It was named after Marine Corps Major General and twice Medal of Honor recipient Smedley ...
in
Okinawa, Japan is a prefecture of Japan. Okinawa Prefecture is the southernmost and westernmost prefecture of Japan, has a population of 1,457,162 (as of 2 February 2020) and a geographic area of 2,281 km2 (880 sq mi). Naha is the capital and largest city ...
, home to III Marine Expeditionary Force. Other important bases include air stations, recruit depots, logistics bases, and training commands.
Marine Corps Air Ground Combat Center Twentynine Palms The Marine Corps Air Ground Combat Center (MCAGCC), also known as 29 Palms, is the largest United States Marine Corps base. It was a census-designated place (CDP) officially known as Twentynine Palms Base located adjacent to the city of Twentynin ...
in California is the Marine Corps's largest base and home to the Corps's most complex, combined-arms, live-fire training.
Marine Corps Base Quantico Marine Corps Base Quantico (commonly abbreviated MCB Quantico) is a United States Marine Corps installation located near Triangle, Virginia, covering nearly of southern Prince William County, Virginia, northern Stafford County, and southeas ...
in Virginia is home to
Marine Corps Combat Development Command Marine Corps Combat Development Command (MCCDC), located at Marine Corps Base Quantico in Prince William County, Virginia, has the mission of supporting the development of future operational concepts and the determination of how to best organize, ...
and nicknamed the "Crossroads of the Marine Corps". The Marine Corps maintains a significant presence in the
National Capital Region A capital region, also called a capital district or capital territory, is a region or district surrounding a capital city. It is not always the official term for the region, but may sometimes be used as an informal synonym. Capital regions can exis ...
, with
Headquarters Marine Corps Headquarters Marine Corps (HQMC) is a headquarters staff within the Department of the Navy which includes the offices of the Commandant of the Marine Corps, the Assistant Commandant of the Marine Corps and various staff functions. The function, ...
scattered amongst
the Pentagon The Pentagon is the headquarters building of the United States Department of Defense. It was constructed on an accelerated schedule during World War II. As a symbol of the U.S. military, the phrase ''The Pentagon'' is often used as a metony ...
, Henderson Hall,
Washington Navy Yard The Washington Navy Yard (WNY) is the former shipyard and ordnance plant of the United States Navy in Southeast Washington, D.C. It is the oldest shore establishment of the U.S. Navy. The Yard currently serves as a ceremonial and administrat ...
, and Marine Barracks, Washington, D.C. Additionally, Marines operate detachments at many installations owned by other branches to better share resources, such as specialty schools. Marines are also present at and operate many forward bases during expeditionary operations.


Marine Forces Reserve

Marine Forces Reserve (MARFORRES/USMCR) consists of the Force Headquarters Group, 4th Marine Division, 4th Marine Aircraft Wing, and the 4th Marine Logistics Group. The MARFORRES/USMCR is capable of forming a 4th Marine Expeditionary Force or reinforcing/augmenting active-duty forces.


Special Operations

Marine Forces Special Operations Command (MARSOC) includes the
Marine Raider Regiment The Marine Raider Regiment (MRR), formerly known as the Marine Special Operations Regiment (MSOR), is a special operations force of the United States Marine Corps, which is a part of Marine Corps Special Operations Command (MARSOC). Renamed ...
, the Marine Raider Support Group, and the Marine Raider Training Center (MRTC). Both the Raider Regiment and the Raider Support Group consist of a headquarters company and three operations battalions. MRTC conducts screening, assessment, selection, training and development functions for MARSOC units. Marine Corps Special Operations Capable forces include: Air Naval Gunfire Liaison Companies, the
Chemical Biological Incident Response Force The Chemical Biological Incident Response Force (CBIRF) is a unit in the United States Marine Corps responsible for countering the effects of a chemical, biological, radiological, nuclear, or high-yield explosive (CBRNE) incident. They were activ ...
, the Marine Division Reconnaissance Battalions, Force Reconnaissance Companies,
Maritime Special Purpose Force A Maritime Special Purpose Force (MSPF) was a United States Marine Corps specialized sub-unit of a Marine expeditionary unit (special operations capable) (MEU(SOC)). A MSPF was deployed to give the commanders low profile, two-platoon surgical em ...
, and Special Reaction Teams. Additionally, all deployed MEUs are certified as " special operations capable", viz. "MEU(SOC)", however Special Operations Capable forces are not considered to be special operations forces. Although the notion of a Marine special operations forces contribution to the
United States Special Operations Command The United States Special Operations Command (USSOCOM or SOCOM) is the unified combatant command charged with overseeing the various special operations component commands of the Army, Marine Corps, Navy, and Air Force of the United States Ar ...
(USSOCOM) was considered as early as the founding of USSOCOM in the 1980s, it was resisted by the Marine Corps. Commandant
Paul X. Kelley Paul Xavier Kelley (November 11, 1928December 29, 2019) was a United States Marine Corps four-star general who served as the 28th Commandant of the United States Marine Corps from July 1, 1983, to June 30, 1987. Kelley served 37 years active du ...
expressed the belief that marines should only support marines and that the Corps should not fund a special operations capability that would not directly support Marine Corps operations. However, much of the resistance from within the Corps dissipated when Marine leaders watched the Corps' 15th and 26th MEU(SOC)s "sit on the sidelines" during the very early stages of
Operation Enduring Freedom Operation Enduring Freedom (OEF) was the official name used synonymously by the U.S. government for both the War in Afghanistan (2001–2014) and the larger-scale Global War on Terrorism. On 7 October 2001, in response to the September 11 a ...
while other conventional units and special operations units from the Army, Navy, and Air Force actively engaged in operations in Afghanistan. After a three-year development period, the Corps agreed in 2006 to supply a 2,500-strong unit, Marine Forces Special Operations Command, which would answer directly to USSOCOM.


Personnel


Leadership

The
Commandant of the Marine Corps The commandant of the Marine Corps (CMC) is normally the highest-ranking officer in the United States Marine Corps and is a member of the Joint Chiefs of Staff. Joint Chiefs of Staff: composition; functions. The CMC reports directly to the secr ...
is the highest-ranking officer of the Marine Corps, unless a marine is either the chairman or vice chairman of the
Joint Chiefs of Staff The Joint Chiefs of Staff (JCS) is the body of the most senior uniformed leaders within the United States Department of Defense, that advises the president of the United States, the secretary of defense, the Homeland Security Council and the ...
. The commandant has the U.S. Code Title 10 responsibility to staff, train, and equip the Marine Corps and has no command authority. The commandant is a member of the Joint Chiefs of Staff and reports to the
Secretary of the Navy The secretary of the Navy (or SECNAV) is a statutory officer () and the head (chief executive officer) of the Department of the Navy, a military department (component organization) within the United States Department of Defense. By law, the se ...
. The Assistant Commandant of the Marine Corps acts as the chief deputy to the commandant. The Sergeant Major of the Marine Corps is the senior enlisted marine and acts as an adviser to the commandant. Headquarters Marine Corps comprises the rest of the commandant's counsel and
staff Staff may refer to: Pole * Staff, a weapon used in stick-fighting ** Quarterstaff, a European pole weapon * Staff of office, a pole that indicates a position * Staff (railway signalling), a token authorizing a locomotive driver to use a particula ...
, with deputy commandants that oversee various aspects of the Corps assets and capabilities. The current and 38th Commandant is David Berger, who assumed the position on 11 July 2019. The 36th and current Assistant Commandant is Eric M. Smith, while the 19th and current Sergeant Major is
Troy E. Black Troy E. Black (born 1968/1969) is a United States Marine and the 19th and current Sergeant Major of the Marine Corps as of July 26, 2019. Early life Black is a native of Louisville, Kentucky and a 1987 graduate of Jeffersontown High School. Mi ...
.


Women

Women have served in the United States Marine Corps since 1918. The first woman to have enlisted was
Opha May Johnson Opha May Johnson (née Jacob, May 4, 1878 – August 11, 1955) was the first woman known to have enlisted in the United States Marine Corps. She joined the Marine Corps Reserve on August 13, 1918, officially becoming the first female Marine. Ea ...
(1878–1955). In January 2017, three women joined an infantry battalion at Camp Lejeune. Women had not served as infantry marines prior to this. In 2017, the Marines released a recruitment advertisement that focused on women for the first time. , female Marines make up 7.8% of the personnel. In December 2020, the Marine Corps began a trial program to have females integrated into the training companies at their recruit depot in San Diego as Congress has mandated an end to the male-only program there. For the 60 female recruits, scheduled to begin training in San Diego in February 2021, the Corps will transfer female drill instructors from their recruit depot in Parris Island, which already has a
coed Mixed-sex education, also known as mixed-gender education, co-education, or coeducation (abbreviated to co-ed or coed), is a system of education where males and females are educated together. Whereas single-sex education was more common up to t ...
program. Fifty-three of these recruits successfully graduated from boot camp in April 2021 and became marines.


Minorities

In 1776 and 1777, a dozen
African American African Americans (also referred to as Black Americans and Afro-Americans) are an ethnic group consisting of Americans with partial or total ancestry from sub-Saharan Africa. The term "African American" generally denotes descendants of ens ...
marines served in the
American Revolutionary War The American Revolutionary War (April 19, 1775 – September 3, 1783), also known as the Revolutionary War or American War of Independence, was a major war of the American Revolution. Widely considered as the war that secured the independence of t ...
, but from 1798 to 1942, the Marine Corps followed a racially discriminatory policy of denying African Americans the opportunity to serve. The Marine Corps has a history of being last of the services to recruit African Americans, and its own history page acknowledges that it was a presidential order that "forced the Corps, despite objections from its leadership, to begin recruiting African American Marines in 1942..It accepted them as recruits into segregated all-black units. For the next few decades, the incorporation of black troops was not widely accepted within the Corps, nor was
desegregation Desegregation is the process of ending the separation of two groups, usually referring to races. Desegregation is typically measured by the index of dissimilarity, allowing researchers to determine whether desegregation efforts are having impact o ...
smoothly or quickly achieved. The integration of non-white Marine Corps personnel proceeded in stages from segregated battalions in 1942, to unified training in 1949, and finally full integration in 1960. Today the Marine Corps is a desegregated force, made up of marines of all races working and fighting alongside each other. As of 2020, African Americans are currently underrepresented in the Marine Corps as compared to their overall percentage of the U.S. population. Concurrently, the Marine Corps is the only service where Hispanics are overrepresented per the same metric.


Rank structure

As in the rest of the United States Armed Forces (excluding the Air Force and Space Force, which do not currently appoint warrant officers), Marine Corps
ranks Rank is the relative position, value, worth, complexity, power, importance, authority, level, etc. of a person or object within a ranking, such as: Level or position in a hierarchical organization * Academic rank * Diplomatic rank * Hierarchy * H ...
fall into one of three categories:
commissioned officer An officer is a person who holds a position of authority as a member of an armed force or uniformed service. Broadly speaking, "officer" means a commissioned officer, a non-commissioned officer, or a warrant officer. However, absent contex ...
,
warrant officer Warrant officer (WO) is a rank or category of ranks in the armed forces of many countries. Depending on the country, service, or historical context, warrant officers are sometimes classified as the most junior of the commissioned ranks, the mo ...
, and enlisted, in decreasing order of authority. To standardize compensation, each rank is assigned a
pay grade A pay grade is a unit in systems of monetary compensation for employment. It is commonly used in public service, both civil and military, but also for companies of the private sector. Pay grades facilitate the employment process by providing a fix ...
.


Commissioned officers

Commissioned officers are distinguished from other officers by their commission, which is the formal written authority, issued in the name of the President of the United States, that confers the rank and authority of a Marine officer. Commissioned officers carry the "special trust and confidence" of the President of the United States. Marine Corps commissioned officers are promoted based on an "
up or out Up or out, also known as a tenure or partnership system, is the requirement for members of a hierarchical organization to achieve a certain rank within a certain period of time. If they fail to do so, they must leave the organization. Examples ...
" system in accordance with the
Defense Officer Personnel Management Act The Defense Officer Personnel Management Act (DOPMA) () is a United States federal law passed in 1980 that for the first time standardized officer personnel management across the United States Armed Forces. It established ceilings on the number o ...
of 1980.


Warrant officers

Warrant officers are primarily formerly enlisted experts in a specific specialized field and provide leadership generally only within that speciality.


Enlisted

Enlisted marines in the pay grades E-1 to E-3 make up the bulk of the Corps's ranks. Although they do not technically hold leadership ranks, the Corps's ethos stresses leadership among all marines, and junior marines are often assigned responsibility normally reserved for superiors. Those in the pay grades of E-4 and E-5 are non-commissioned officers (NCOs). They primarily supervise junior Marines and act as a vital link with the higher command structure, ensuring that orders are carried out correctly. Marines E-6 and higher are staff non-commissioned officers (SNCOs), charged with supervising NCOs and acting as enlisted advisers to the command. The E-8 and E-9 levels have two and three ranks per pay grade, respectively, each with different responsibilities. The first sergeant and sergeant major ranks are command-oriented, serving as the senior enlisted marines in a unit, charged to assist the commanding officer in matters of discipline, administration, and the morale and welfare of the unit. Master sergeants and master gunnery sergeants provide technical leadership as occupational specialists in their specific MOS. The Sergeant Major of the Marine Corps also E-9, is a billet conferred on the senior enlisted marine of the entire Marine Corps, personally selected by the commandant. It is possible for an enlisted marine to hold a position senior to Sergeant Major of the Marine Corps which was the case from 2011 to 2015 with the appointment of Sergeant Major
Bryan B. Battaglia Bryan B. Battaglia is a retired United States Marine who served as Senior Enlisted Advisor to the Chairman of the Joint Chiefs of Staff, sworn into office on 30 September 2011. He held this position until December 11, 2015. Early life Battaglia ...
to the billet of
Senior Enlisted Advisor to the Chairman The senior enlisted advisor to the chairman of the Joint Chiefs of Staff (SEAC) is the most senior non-commissioned officer (NCO) position overall in the United States Armed Forces. The SEAC is appointed by the chairman of the Joint Chiefs of ...
, who is the most senior enlisted member of the United States military, serving in the Joint Chiefs of Staff.


Military Occupational Specialty

The Military Occupational Specialty (MOS) is a system of job classification. Using a four digit code, it designates what field and specific occupation a Marine performs. Segregated between officer and enlisted, the MOS determines the staffing of a unit. Some MOSs change with rank to reflect supervisory positions; others are secondary and represent a temporary assignment outside of a Marine's normal duties or special skill.


Initial training

Every year, over 2,000 new Marine officers are commissioned, and 38,000 recruits are accepted and trained. All new marines, enlisted or officer, are recruited by the
Marine Corps Recruiting Command The Marine Corps Recruiting Command is a command of the United States Marine Corps responsible for military recruitment of civilians into the Corps. In addition to finding volunteers to join, it is also responsible for preparing them for United S ...
. Commissioned officers are commissioned mainly through one of three sources:
Naval Reserve Officer Training Corps The Naval Reserve Officers Training Corps (NROTC) program is a college-based, commissioned officer training program of the United States Navy and the United States Marine Corps. Origins A pilot Naval Reserve unit was established in September 1 ...
, Officer Candidates School, or the
United States Naval Academy The United States Naval Academy (US Naval Academy, USNA, or Navy) is a federal service academy in Annapolis, Maryland. It was established on 10 October 1845 during the tenure of George Bancroft as Secretary of the Navy. The Naval Academy ...
. Following commissioning, all Marine commissioned officers, regardless of accession route or further training requirements, attend
The Basic School The Basic School (TBS) is where all newly commissioned and appointed (for warrant officers) United States Marine Corps officers are taught the basics of being an "Officer of Marines". The Basic School is located at Camp Barrett, Quantico, Vi ...
at Marine Corps Base Quantico. At The Basic School, second lieutenants, warrant officers, and selected foreign officers learn the art of infantry and
combined arms Combined arms is an approach to warfare that seeks to integrate different combat arms of a military to achieve mutually complementary effects (for example by using infantry and armour in an urban environment in which each supports the other) ...
warfare. Enlisted marines attend
recruit training Military recruit training, commonly known as basic training or boot camp, refers to the initial instruction of new military personnel. It is a physically and psychologically intensive process, which resocializes its subjects for the unique deman ...
, known as ''boot camp'', at either Marine Corps Recruit Depot San Diego or Marine Corps Recruit Depot Parris Island. Historically, the
Mississippi River The Mississippi River is the List of longest rivers of the United States (by main stem), second-longest river and chief river of the second-largest Drainage system (geomorphology), drainage system in North America, second only to the Hudson B ...
served as a dividing line that delineated who would be trained where, while more recently, a district system has ensured a more even distribution of male recruits between the two facilities. All recruits must pass a fitness test to start training; those who fail will receive individualized attention and training until the minimum standards are reached. Marine recruit training is the longest among the American military services; it is 13 weeks long including processing and out-processing. Following recruit training, enlisted marines then attend The School of Infantry at
Camp Geiger Camp Geiger is a United States Marine Corps base. Although not geographically connected, Camp Geiger is part of the Marine Corps Base Camp Lejeune complex, and is home to the United States Marine Corps School of Infantry East for all Marines rec ...
or
Camp Pendleton Marine Corps Base Camp Pendleton is the major West Coast base of the United States Marine Corps and is one of the largest Marine Corps bases in the United States. It is on the Southern California coast in San Diego County and is bordered by O ...
. Infantry marines begin their combat training, which varies in length, immediately with the Infantry Training Battalion. Marines in all other MOSs train for 29 days in Marine Combat Training, learning common infantry skills, before continuing on to their MOS schools, which vary in length.


Uniforms

The Marine Corps has the most stable and most recognizable uniforms in the American military; the Dress Blues dates back to the early 19th century and the service uniform to the early 20th century. Only a handful of skills (parachutist, air crew, explosive ordnance disposal, etc.) warrant distinguishing badges, and rank insignia is not worn on uniform headgear (with the exception of an officer's garrison service cover). Marines have four main uniforms: dress, service, utility, and physical training. These uniforms have a few minor but very distinct variations from enlisted personnel to commissioned and non-commissioned officers. The Marine Corps
dress uniform Full dress uniform, also known as a ceremonial dress uniform or parade dress uniform, is the most formal type of uniforms used by military, police, fire and other public uniformed services for official parades, ceremonies, and receptions, ...
is the most elaborate, worn for formal or ceremonial occasions. There are four different forms of the dress uniform. The variations of the dress uniforms are known as "Alphas", "Bravos", "Charlies", or "Deltas". The most common being the "Blue Dress Alphas or Bravos", called "Dress Blues" or simply "Blues". It is most often seen in recruiting advertisements and is equivalent to
black tie Black tie is a semi-formal Western dress code for evening events, originating in British and American conventions for attire in the 19th century. In British English, the dress code is often referred to synecdochically by its principal element f ...
. There is a "Blue-White" Dress for summer, and Evening Dress for formal (
white tie White tie, also called full evening dress or a dress suit, is the most formal in traditional evening western dress codes. For men, it consists of a black tail coat (alternatively referred to as a dress coat, usually by tailors) worn over a wh ...
) occasions, which are reserved for SNCO's and officers. Versions with a khaki shirt in lieu of the coat (Blue Dress Charlie/Delta) are worn as a daily working uniform by Marine recruiters and NROTC staff. The service uniform was once the prescribed daily work attire in garrison; however, it has been largely superseded in this role by the utility uniform. Consisting of olive green and khaki colors. It is roughly equivalent in function and composition to a
business suit A suit, lounge suit, or business suit is a set of clothes comprising a suit jacket and trousers of identical textiles worn with a collared dress shirt, necktie, and dress shoes. A skirt suit is similar, but with a matching skirt instead of t ...
. The utility uniform, currently the
Marine Corps Combat Utility Uniform The Marine Corps Combat Utility Uniform (MCCUU) is the current battledress uniform of the United States Marine Corps. It is also worn by Navy personnel (mostly corpsmen, Seabees, chaplains, and their bodyguards) assigned to Marine Corps un ...
, is a camouflage uniform intended for wear in the field or for dirty work in garrison, though it has been standardized for regular duty. It is rendered in
MARPAT MARPAT (short for Marine pattern) is a multi-scale camouflage pattern in use with the United States Marine Corps, designed in 2001 and introduced from late 2002 to early 2005 with the Marine Corps Combat Utility Uniform (MCCUU), which replace ...
pixelated
camouflage Camouflage is the use of any combination of materials, coloration, or illumination for concealment, either by making animals or objects hard to see, or by disguising them as something else. Examples include the leopard's spotted coat, the b ...
that breaks up the wearer's shape. In garrison, the woodland and desert uniforms are worn depending on the marine's duty station. Marines consider the utilities a working uniform and do not permit their wear off-base, except in transit to and from their place of duty and in the event of an emergency.


Culture


Official traditions and customs

As in any military organization, the official and unofficial traditions of the Marine Corps serve to reinforce camaraderie and set the service apart from others. The Corps's embrace of its rich culture and history is cited as a reason for its high ''esprit de corps''. An important part of the Marine Corps culture is the traditional seafaring naval terminology derived from its history with the Navy. "Marines" are not "soldiers" or "sailors". The ''Marine Corps emblem'' is the
Eagle, Globe, and Anchor The Eagle, Globe, and Anchor (commonly referred to as an EGA) is the official emblem and insignia of the United States Marine Corps. The current emblem traces its roots in the designs and ornaments of the early Continental Marines as well as the ...
, sometimes abbreviated "EGA", adopted in 1868. The Marine Corps seal includes the emblem, also is found on the flag of the United States Marine Corps, and establishes scarlet and gold as the official colors. The Marine motto ''
Semper Fidelis ''Semper fidelis'' () is a Latin phrase that means "always faithful" or "always loyal" (Fidelis or Fidelity). It is the motto of the United States Marine Corps, usually shortened to Semper Fi. It is also in use as a motto for towns, families, ...
'' means ''Always Faithful'' in
Latin Latin (, or , ) is a classical language belonging to the Italic languages, Italic branch of the Indo-European languages. Latin was originally a dialect spoken in the lower Tiber area (then known as Latium) around present-day Rome, but through ...
, often appearing as ''Semper Fi''. The ''
Marines' Hymn The "Marines' Hymn" is the official hymn of the United States Marine Corps, introduced by the first director of the USMC Band, Francesco Maria Scala. Its music originates from an 1867 work by Jacques Offenbach with the lyrics added by an anonymou ...
'' dates back to the 19th century and is the oldest official song in the United States armed forces. ''Semper Fi'' is also the name of the official march of the Corps, composed by
John Philip Sousa John Philip Sousa ( ; November 6, 1854 – March 6, 1932) was an American composer and conductor of the late Romantic era known primarily for American military marches. He is known as "The March King" or the "American March King", to dis ...
. The mottos ''"Fortitudine"'' (With Fortitude); ''By Sea and by Land'', a translation of the
Royal Marines The Corps of Royal Marines (RM), also known as the Royal Marines Commandos, are the UK's special operations capable commando force, amphibious warfare, amphibious light infantry and also one of the :Fighting Arms of the Royal Navy, five fighti ...
' ''Per Mare, Per Terram''; and ''To the Shores of Tripoli'' were used until 1868. Two styles of swords are worn by marines: the officers' Mameluke Sword, similar to the Persian
shamshir A shamshir ( fa, شمشیر) is a type of Persian/Iranian sword with a radical curve. The name is derived from the Persian word ''shamshīr'', which means "sword". The curved "scimitar" sword family includes the shamshir, kilij, talwar, pulw ...
presented to Lt. Presley O'Bannon after the
Battle of Derna The Battle of Derna at Derna, Cyrenaica, was the decisive victory in April–May 1805 of a mercenary army recruited and led by United States Marines under the command of U.S. Army Lieutenant William Eaton, diplomatic Consul to Tripoli, and U ...
, and the Marine NCO sword. The
Marine Corps Birthday The United States Marine Corps Birthday is an American holiday celebrated every year on 10 November with a traditional ball and cake-cutting ceremony. On that day in 1775, the Continental Marines were established. Historical birthday The o ...
is celebrated every year on 10 November in a cake-cutting ceremony where the first slice of cake is given to the oldest marine present, who in turn hands it off to the youngest marine present. The celebration includes a reading of Commandant Lejeune's Birthday Message. Close Order Drill is heavily emphasized early on in a marine's initial training, incorporated into most formal events, and is used to teach discipline by instilling habits of precision and automatic response to orders, increase the confidence of junior officers and noncommissioned officers through the exercise of command and give marines an opportunity to handle individual weapons.


Unofficial traditions and customs

Marines have several generic nicknames: * ''
Devil Dog Devil Dog is a nickname for a United States Marine coined during World War I. History Multiple publications of the United States Marine Corps claim that the nickname "Teufel Hunden"—"Devil Dogs" in English—was bestowed upon the ...
:'' German soldiers during the First World War said that at Belleau Wood the marines were so vicious that the German infantrymen called them Teufel Hunden – 'devil dogs'. * ''Gyrene:'' commonly used between fellow marines. * ''
Leatherneck Leatherneck is a military slang term in the USA for a member of the United States Marine Corps. It is generally believed to originate in the wearing of a "leather stock" that went around the neck. Its original purpose was to protect the neck fro ...
:'' refers to a leather collar formerly part of the Marine uniform during the Revolutionary War period. * ''Jarhead'' has several oft-disputed explanations. Some other unofficial traditions include mottos and exclamations: * '' Oorah'' is common among marines, being similar in function and purpose to the Army, Air Force, and Space Force's hooah and the Navy's hooyah cries. Many possible
etymologies Etymology () The New Oxford Dictionary of English (1998) – p. 633 "Etymology /ˌɛtɪˈmɒlədʒi/ the study of the class in words and the way their meanings have changed throughout time". is the study of the history of the form of words a ...
have been offered for the term. * '' Semper Fi'' is a common greeting among serving and veteran marines. * ''Improvise, Adapt and Overcome'' has become an adopted mantra in many units. The Marines have historically had issues with extremism in their ranks, particularly
White supremacy White supremacy or white supremacism is the belief that white people are superior to those of other races and thus should dominate them. The belief favors the maintenance and defense of any power and privilege held by white people. White ...
. In 1976 the Camp Pendleton Chapter of the
Ku Klux Klan The Ku Klux Klan (), commonly shortened to the KKK or the Klan, is an American white supremacist, right-wing terrorist, and hate group whose primary targets are African Americans, Jews, Latinos, Asian Americans, Native Americans, and Cat ...
had over 100 members and was headed by an active duty marine. In 1986, a number of marines were implicated in the theft of weapons for the
White Patriot Party The White Patriot Party (WPP) was an American anti-Semitic, anti-Zionist, homophobic, white supremacist paramilitary political party which was associated with Christian Identity and the Ku Klux Klan. It was led by its founder, Frazier Glenn Mill ...
. The USMC, along with the rest of the military, has since made a serious effort to address extremism in the ranks.


Veteran marines

The Corps encourages the idea that "marine" is an earned title, and most Marine Corps personnel take to heart the phrase, "Once a marine, Always a marine". They reject the term "ex-marine" in most circumstances. There are no regulations concerning the address of persons who have left active service, so a number of customary terms have come into common use.


Martial arts program

In 2001, the Marine Corps initiated an internally designed martial arts program, called Marine Corps Martial Arts Program (MCMAP). Because of an expectation that urban and police-type
peacekeeping Peacekeeping comprises activities intended to create conditions that favour lasting peace. Research generally finds that peacekeeping reduces civilian and battlefield deaths, as well as reduces the risk of renewed warfare. Within the United ...
missions would become more common in the 21st century, placing marines in even closer contact with unarmed civilians, MCMAP was implemented to provide marines with a larger and more versatile set of less-than-lethal options for controlling hostile, unarmed individuals. It is a stated aim of the program to instill and maintain the "Warrior Ethos" within marines.Yi, Capt. Jamison, USMC. "MCMAP and the Warrior Ethos", ''Military Review'', November–December 2004. The MCMAP is an eclectic mix of different styles of martial arts melded together. MCMAP consists of punches and kicks from
Taekwondo ''Taekwondo'', ''Tae Kwon Do'' or ''Taekwon-Do'' (; ko, 태권도/跆拳道 ) is a Korean martial arts, Korean form of martial arts involving punching and kicking techniques, with emphasis on head-height kicks, spinning jump kicks, and fast k ...
and
Karate (; ; Okinawan pronunciation: ) is a martial art developed in the Ryukyu Kingdom. It developed from the indigenous Ryukyuan martial arts (called , "hand"; ''tii'' in Okinawan) under the influence of Chinese martial arts, particularly Fuj ...
, opponent weight transfer from Jujitsu, ground grappling involving
joint lock A joint lock is a grappling technique involving manipulation of an opponent's joints in such a way that the joints reach their maximal degree of motion and hyperextension. In judō these are referred to as, 関節技 ''kansetsu-waza'', "joint lo ...
ing techniques and chokes from
Brazilian jiu-jitsu Brazilian jiu-jitsu (BJJ; pt, jiu-jitsu brasileiro ) is a self-defence martial art and combat sport based on grappling, ground fighting (ne-waza) and submission holds. BJJ focuses on the skill of taking an opponent to the ground, control ...
, and a mix of knife and baton/stick fighting derived from
Eskrima Arnis, also known as Kali or Eskrima/Escrima, is the national martial art of the Philippines. The three are roughly interchangeable umbrella terms for the traditional martial arts of the Philippines (" Filipino Martial Arts", or FMA), which em ...
, and elbow strikes and kick boxing from
Muay Thai Muay Thai ( th, มวยไทย, , ), sometimes referred to as Thai boxing, is a combat sport that uses stand-up striking along with various clinching techniques. This discipline is known as the "art of eight limbs", as it is characterise ...
. Marines begin MCMAP training in boot camp, where they will earn the first of five available belts. The belts begin at tan and progress to black and are worn with standard utility uniforms.


Equipment

As of 2013, the typical infantry rifleman carries $14,000 worth of gear (excluding
night-vision goggles A night-vision device (NVD), also known as a night optical/observation device (NOD), night-vision goggle (NVG), is an optoelectronic device that allows visualization of images in low levels of light, improving the user's night vision. The dev ...
), compared to $2,500 a decade earlier. The number of pieces of equipment (everything from radios to trucks) in a typical infantry battalion has also increased, from 3,400 pieces of gear in 2001 to 8,500 in 2013.


Infantry weapons

The basic infantry weapon of the Marine Corps has been the
M16A4 The M16 rifle (officially designated Rifle, Caliber 5.56 mm, M16) is a family of military rifles adapted from the ArmaLite AR-15 rifle for the United States military. The original M16 rifle was a 5.56×45mm automatic rifle with a 20-roun ...
service rifle. Most non-infantry marines have been equipped with the
M4 Carbine The M4 carbine (officially Carbine, Caliber 5.56 mm, M4) is a 5.56×45mm NATO, gas-operated, magazine-fed carbine developed in the United States during the 1980s. It is a shortened version of the M16A2 assault rifle. The M4 is extensive ...
or
Colt 9mm SMG The Colt 9mm SMG, also known as the Colt Model 635 or Colt M635, is a 9×19mm Parabellum submachine gun manufactured by Colt, based on the M16 rifle. Design details The Colt 9mm SMG is a closed bolt, blowback operated SMG, rather than the co ...
. The standard side arm is the M9A1 pistol. The Colt
M1911 The M1911 (Colt 1911 or Colt Government) is a single-action, recoil-operated, semi-automatic pistol chambered for the .45 ACP cartridge. The pistol's formal U.S. military designation as of 1940 was ''Automatic Pistol, Caliber .45, M1911'' for th ...
is also being put back into service as the M45A1 Close Quarter Battle Pistol (CQBP) in small numbers.
Suppressive fire In military science, suppressive fire is "fire that degrades the performance of an enemy force below the level needed to fulfill its mission". When used to protect exposed friendly troops advancing on the battlefield, it is commonly called cove ...
is provided by the
M27 IAR The M27 Infantry Automatic Rifle (IAR) is a 5.56×45mm NATO, 5.56mm selective fire, select-fire assault rifle, based on the Heckler & Koch HK416, HK416 by Heckler & Koch. It is used by the United States Marine Corps (USMC) and is intended to be iss ...
,
M249 SAW The M249 light machine gun (LMG), also known as the M249 Squad Automatic Weapon (SAW), which continues to be the manufacturer's designation, and formally written as Light Machine Gun, 5.56 mm, M249, is the American adaptation of the Belgian F ...
, and
M240 The M240 – officially the Machine Gun, 7.62 mm, M240 – is the U.S. military designation for the FN MAG, a family of belt-fed, gas-operated medium machine guns that chamber the 7.62×51mm NATO cartridge. The M240 has been used by t ...
machine guns, at the squad and company levels respectively. In 2018, the M27 IAR was selected to be the standard issue rifle for the all infantry squads. In 2021, the Marine Corps committed to fielding suppressors to all its infantry units, making it the first branch of the U.S. military to adopt them for widespread use. Indirect fire is provided by the
M203 grenade launcher The M203 is a single-shot 40 mm under-barrel grenade launcher designed to attach to a rifle. It uses the same rounds as the older stand-alone M79 break-action grenade launcher, which utilizes the high-low propulsion system to keep recoil forces ...
and the M32 grenade launcher in fireteams, M224 60 mm mortar in companies, and M252 81 mm mortar in battalions. The M2 .50 caliber heavy machine gun and MK19 automatic grenade launcher (40 mm) are available for use by dismounted infantry, though they are more commonly vehicle-mounted. Precision firepower is provided by the M40 series and the
Barrett M107 The Barrett M82 (standardized by the U.S. military as the M107) is a recoil-operated, semi-automatic anti-materiel rifle developed by the American company Barrett Firearms Manufacturing. Also called the Light Fifty (due to its chambering of ...
, while
designated marksmen A designated marksman (DM), squad advanced marksman (AD) or squad designated marksman (SDM) is a military marksman role in an infantry squad. The term ''sniper'' was used in Soviet doctrine although the soldiers using the Dragunov SVD were the f ...
use the DMR (being replaced by the M39 EMR), and the SAM-R. The Marine Corps utilizes a variety of direct-fire rockets and missiles to provide infantry with an offensive and defensive anti-armor capability. The SMAW and
AT4 The AT4 is a Swedish unguided, man-portable, disposable, shoulder-fired recoilless anti-tank weapon built by Saab Bofors Dynamics (previously Bofors Anti-Armour Systems and before that FFV Ordance). The AT4 is not considered a rocket launc ...
are unguided rockets that can destroy armor and fixed defenses (e.g., bunkers) at ranges up to 500 meters. The smaller and lighter
M72 LAW The M72 LAW (light anti-tank weapon, also referred to as the light anti-armor weapon or LAW as well as LAWS: light anti-armor weapons system) is a portable one-shot unguided anti-tank weapon. The solid rocket propulsion unit was developed in th ...
can destroy targets at ranges up to 200 meters. The Predator SRAW,
FGM-148 Javelin The FGM-148 Javelin, or Advanced Anti-Tank Weapon System-Medium (AAWS-M), is an American-made portable anti-tank missile system in service since 1996, and continuously upgraded. It replaced the M47 Dragon anti-tank missile in US service. Its fire- ...
and
BGM-71 TOW The BGM-71 TOW ("Tube-launched, Optically tracked, Wire-guided") is an American anti-tank missile. TOW replaced much smaller missiles like the SS.10 and ENTAC, offering roughly twice the effective range, a more powerful warhead, and a greatly ...
are
anti-tank guided missile An anti-tank guided missile (ATGM), anti-tank missile, anti-tank guided weapon (ATGW) or anti-armor guided weapon is a guided missile primarily designed to hit and destroy heavily armored military vehicles. ATGMs range in size from shoulder ...
s. The Javelin can utilize top-attack profiles to avoid heavy frontal armor. The Predator is a short-range
fire-and-forget Fire-and-forget is a type of missile guidance which does not require further external intervention after launch such as illumination of the target or wire guidance, and can hit its target without the launcher being in line-of-sight of the targe ...
weapon; the Javelin and TOW are heavier missiles effective past 2,000 meters that give infantry an offensive capability against armor.


Ground vehicles

The Corps operates the same
HMMWV The High Mobility Multipurpose Wheeled Vehicle (HMMWV; colloquial: Humvee) is a family of light, four-wheel drive, military trucks and utility vehicles produced by AM General. It has largely supplanted the roles previously performed by the ori ...
as does the Army, which is in the process of being replaced by the
Joint Light Tactical Vehicle The Joint Light Tactical Vehicle (JLTV) is a United States military (specifically U.S. Army, U.S. Marine Corps) and United States Special Operations Command program to partially replace the Humvee fleet with a family of more survivable vehicle ...
(JLTV). However, for its specific needs, the Corps uses a number of unique vehicles. The
LAV-25 The LAV-25 is a member of the LAV II family. It is an eight-wheeled amphibious armored reconnaissance vehicle built by General Dynamics Land Systems and used by the United States Marine Corps and the United States Army. History During the 1980s, ...
is a dedicated wheeled armored personnel carrier, similar to the Army's
Stryker The Stryker is a family of eight-wheeled armored fighting vehicles derived from the Canadian LAV III. Stryker vehicles are produced by General Dynamics Land Systems-Canada (GDLS-C) for the United States Army in a plant in London, Ontario. It ...
vehicle, used to provide strategic mobility. Amphibious capability is provided by the AAV-7A1 Assault Amphibious Vehicle, an armored tracked vehicle that doubles as an
armored personnel carrier An armoured personnel carrier (APC) is a broad type of armoured military vehicle designed to transport personnel and equipment in combat zones. Since World War I, APCs have become a very common piece of military equipment around the world. Acc ...
, due to be replaced by the
Amphibious Combat Vehicle The Amphibious Combat Vehicle (ACV) is a program initiated by Marine Corps Systems Command to procure an amphibious assault vehicle for the United States Marine Corps to supplement and ultimately replace the aging Assault Amphibious Vehicle (AAV ...
, a faster vehicle with superior armor and weaponry. The threat of
land mine A land mine is an explosive device concealed under or on the ground and designed to destroy or disable enemy targets, ranging from combatants to vehicles and tanks, as they pass over or near it. Such a device is typically detonated automati ...
s and improvised explosive devices in Iraq and Afghanistan has seen the Corps begin purchasing heavy armored vehicles that can better withstand the effects of these weapons as part of the MRAP, Mine Resistant Ambush Protected vehicle program. The Marines also operate the M777 howitzer, M777 155 mm howitzer and the M142 HIMARS, High Mobility Artillery Rocket System (HIMARS), a truck-mounted rocket artillery system. Both are capable of firing guided munitions. In 2020, the Marine Corps retired its M1 Abrams, M1A1 Abrams tanks and eliminated all of its tank units. General David Berger explained the decision describing the long-serving Marine weapons system as "operationally unsuitable for our highest-priority challenges." The move leaves the Army as the sole operator of American tanks.


Aircraft

The Organic unit, organic aviation capability of the Marine Corps is essential to its amphibious mission. The Corps operates both helicopter, rotary-wing and fixed-wing aircraft mainly to provide Assault Support and
close air support In military tactics, close air support (CAS) is defined as air action such as air strikes by fixed or rotary-winged aircraft against hostile targets near friendly forces and require detailed integration of each air mission with fire and movemen ...
to its ground forces. Other aircraft types are used in a variety of support and special-purpose roles. The light transport and attack capabilities are provided by the Bell UH-1Y Venom and Bell AH-1Z Viper. Medium-lift squadrons utilize the Bell-Boeing V-22 Osprey, MV-22 Osprey tiltrotor. Heavy-lift squadrons are equipped with the Sikorsky CH-53E Super Stallion, CH-53E Super Stallion helicopter, which are being replaced with the upgraded Sikorsky CH-53K, CH-53K. Marine attack squadrons fly the McDonnell Douglas AV-8B Harrier II, AV-8B Harrier II; while the fighter/attack mission is handled by the single-seat and dual-seat versions of the McDonnell Douglas F/A-18 Hornet, F/A-18 Hornet strike-fighter aircraft. The AV-8B is a V/STOL aircraft that can operate from amphibious assault ships, land air bases and short, expeditionary airfields, while the F/A-18 can only be flown from land or
aircraft carrier An aircraft carrier is a warship that serves as a seagoing airbase, equipped with a full-length flight deck and facilities for carrying, arming, deploying, and recovering aircraft. Typically, it is the capital ship of a fleet, as it allows a ...
s. Both are slated to be replaced by 340 of the STOVL B version of the Lockheed Martin F-35 Lightning II, F-35 Lightning II and 80 of the carrier F-35C versions for deployment with Navy
carrier air wing A carrier air wing (abbreviated CVW) is an operational naval aviation organization composed of several aircraft squadrons and detachments of various types of fixed-wing and rotary-wing aircraft. Organized, equipped and trained to conduct mo ...
s. The Corps operates its own organic aerial refueling assets in the form of the Lockheed C-130 Hercules, KC-130 Hercules; however it also receives a large amount of support from the U.S. Air Force. The Hercules doubles as a ground refueler and tactical-airlift transport aircraft. The USMC electronic warfare plane, the Northrop Grumman EA-6B Prowler, EA-6B, was retired in 2019. The Marines operate unmanned aerial vehicles: the AAI RQ-7 Shadow, RQ-7 Shadow and Boeing ScanEagle, Scan Eagle for tactical reconnaissance. Marine Fighter Training Squadron 401 (VMFT-401), operates Northrop F-5, F-5E, F-5F and F-5N Tiger II aircraft in support of air combat adversary (dissimilar air combat training, aggressor) training. Marine Helicopter Squadron One (
HMX-1 Marine Helicopter Squadron One (HMX-1) is a United States Marine Corps helicopter squadron responsible for the transportation of the president and vice president of the United States, heads of state, Department of Defense officials, and other VIP ...
) operates the Sikorsky SH-3 Sea King, VH-3D Sea King and Sikorsky UH-60 Black Hawk, VH-60N Whitehawk helicopters in the VIP transport role, most notably
Marine One Marine One is the call sign of any United States Marine Corps aircraft carrying the president of the United States. It usually denotes a helicopter operated by Marine Helicopter Squadron One (HMX-1) "Nighthawks", consisting of either the large ...
, but are VXX, due to be replaced. A single Marine Corps Lockheed C-130 Hercules, C-130 Hercules aircraft, "Fat Albert", is used to support the U.S. Navy's flight demonstration team, the "Blue Angels".


Relationship with other services

In general, the Marine Corps shares many resources with the other branches of the
United States Armed Forces The United States Armed Forces are the military forces of the United States. The armed forces consists of six service branches: the Army, Marine Corps, Navy, Air Force, Space Force, and Coast Guard. The president of the United States is ...
. However, the Corps has consistently sought to maintain its own identity with regard to mission, funding, and assets, while utilizing support available from the larger branches. While the Marine Corps has far fewer installations both in the U.S. and worldwide than the other branches, many List of United States Army installations, Army posts, List of United States Navy installations, Naval stations, and List of United States Air Force installations, Air Force bases have a Marine presence. They also cross-train with other countries.


United States Navy

The Marine Corps's counterpart under the Department of the Navy is the United States Navy. As a result, the Navy and Marine Corps have a close relationship, more so than with other branches of the military. White paper, Whitepapers and promotional literature have commonly used the phrase "Navy-Marine Corps Team", or refer to "the Naval Service". Both the Chief of Naval Operations (CNO) and Commandant of the Marine Corps report directly to the Secretary of the Navy. Operationally, the Marine Corps provides the
Fleet Marine Force The United States Fleet Marine Forces (FMF) are combined general- and special-purpose forces within the United States Department of the Navy that perform offensive amphibious or expeditionary warfare and defensive maritime employment. The Flee ...
s for service with the Navy's fleets, including the forward-deployed Marine Expeditionary Units embarked aboard Navy amphibious warships. The Corps also contributes some Marine Aviation fixed-wing fighter/attack assets (aircraft squadrons and related aircraft maintenance augmentation units) as part of the Carrier Air Wings deployed aboard aircraft carriers. The Marine Corps Security Force Regiment provides infantry-based security battalions and Fleet Anti-terrorism Security Team companies to guard and defend high-priority and overseas Navy bases. Security for the Presidential Retreat located aboard the Camp David, Naval Support Activity Thurmont, viz., ''Camp David'' is provided by the Marine infantry battalion stationed as part of the garrison aboard Marine Barracks Washington. Cooperation between the two services includes the training and instruction of some future Marine Corps officers (most are trained and commissioned through Marine Corps OCS), all Marine Corps Naval Aviators (aircraft pilots) and Naval Flight Officers (airborne weapons and sensor system officers), and some Navy and Marine Corps enlisted personnel. The Corps receives a significant portion of its officers from the
United States Naval Academy The United States Naval Academy (US Naval Academy, USNA, or Navy) is a federal service academy in Annapolis, Maryland. It was established on 10 October 1845 during the tenure of George Bancroft as Secretary of the Navy. The Naval Academy ...
(USNA) and Naval Reserve Officers Training Corps (NROTC). USNA and NROTC staff and faculty includes Marine Corps instructors. United States Marine Corps Aviation#Aviators and Flight Officers, Marine Corps aviators and flight officers are trained in the Naval Air Training Command (NATRACOM) and are designated, or ''winged'' as United States Naval Aviator, Naval Aviators or Naval Flight Officers. The Marine Corps provides flight instructors to the Naval Air Training Command as well as drill instructors to the Officer Candidate School (United States Navy), Navy's Officer Candidate School. Many enlisted marines, particularly those in the aviation maintenance specialties, are trained at Navy technical training centers. The Marine Corps also provides ground combat training support to various Navy field medical (Hospital Corpsmen), Naval Construction Force (Seabee), and Navy Expeditionary Warfare personnel, units, and commands. Training alongside each other is viewed as critical, as the Navy provides transport, logistical, and combat support to put Marine units into the fight, such as Strategic sealift ships, maritime prepositioning ships and naval gunfire support. Most Marine aviation assets ultimately derive from the Navy, with regard to acquisition, funding, and testing, and Navy aircraft carriers typically deploy with a Marine squadron alongside Navy squadrons. Marines do not recruit or train noncombatants such as chaplains or medical/dental personnel; naval personnel fill these roles. Some of these sailors, particularly Hospital corpsman, Hospital corpsmen and Religious program specialists, generally wear Marine uniforms emblazoned with Navy insignia. Conversely, the Marine Corps is responsible for conducting land operations to support naval campaigns, including the seizure of naval bases. Both services operate a network security team in conjunction. Marines and sailors share many naval traditions, especially terminology and customs. Marine Corps
Medal of Honor The Medal of Honor (MOH) is the United States Armed Forces' highest military decoration and is awarded to recognize American soldiers, sailors, marines, airmen, guardians and coast guardsmen who have distinguished themselves by acts of val ...
recipients wear the Navy variant of this and other awards; and with few exceptions, the awards and badges of the Navy and Marine Corps are identical. Much of testing for new Marine Corps aircraft is done at Naval Air Station Patuxent River. The Navy's Blue Angels flight demonstration team is staffed by both Navy and Marine officers and enlisted personnel. In 2007, the Marine Corps joined with the Navy and Coast Guard to adopt a new maritime strategy called ''A Cooperative Strategy for 21st Century Seapower'' that raises the notion of prevention of war to the same Philosophy of war, philosophical level as the conduct of war. This new strategy charts a course for the Navy, Coast Guard and Marine Corps to work collectively with each other and international partners to prevent regional crises, man-made or natural, from occurring or reacting quickly should one occur to avoid negative impacts to the United States.


United States Army

The Marine Corps capabilities overlap with those of the United States Army, historically creating competition for funding and missions. The competition dates back to the founding of the Continental Marines, when General George Washington refused to allow the initial Marine battalions to be drawn from among his Continental Army. In the aftermath of World War II, Army leadership made efforts to restructure the American defense establishment including the dissolution of the Marine Corps and the folding of its capabilities into the other services. Leading this movement were such prominent Army officers as General Dwight D. Eisenhower and Chief of Staff of the United States Army, Army Chief of Staff George C. Marshall. The Goldwater-Nichols Act significantly reshaped the services roles and relationships with each other, enforcing more joint decision making. Department of Defense Directive 5100.01 tasks both the Army and Marine Corps with expeditionary and amphibious operations. With most of the 2000s spent in operations in Afghanistan and Iraq, Secretary of Defense
Robert Gates Robert Michael Gates (born September 25, 1943) is an American intelligence analyst and university president who served as the 22nd United States secretary of defense from 2006 to 2011. He was originally appointed by president George W. Bush a ...
voiced concerns that the Marine Corps are becoming a "second Army". Since these comments, the Marine Corps has shed its main battle tanks, reduced its size, and focused more on operations in littoral areas where the Army is not explicitly tasked to operate. The Army maintains much larger and diverse combat arms, special operations, and logistics forces. The Army has much lighter and expeditionary forces in its infantry and airborne infantry brigade combat teams. The Army also maintains heavier and more logistically taxing armored brigade combat teams. The Marine Corps, in comparison, maintains forces between these two extremes of mobility and protection. The Marine Corps organizes much smaller deployable units with integrated aviation support. The Marine Corps was historically hesitant to provide forces to U.S. Special Operations Command, instead making specialty units available to its division commanders. The Army has maintained Special Forces, Rangers, civil affairs, psychological operations, special operations aviation, and special missions units for decades. In 2003, the Marine Corps created the present-day successors to the Marine Raiders and provided them to United States Special Operations Command, Special Operations Command starting with the establishment of Det One, MCSOCOM Detachment One. The modern Marine Raider training pipeline was based on input from U.S. Army Ranger and Special Forces units. Culturally, marines and soldiers share most of the common U.S. military slang and terminology, but the Corps utilizes a large number of naval terms and traditions incompatible with Army lifestyle, as well as their own List of United States Marine Corps acronyms and expressions, unique vernacular. As the Army Reserve and Army National Guard is much larger than the Marine Corps's Reserve, many more former active duty marines continue their service in the Army's reserve components. The Army does not require transfers from the Marines, Air Force Security Forces, or special operations of any branch to attend Army Basic Combat Training. Due to the requirement that all inter-service transfers attend Marine Corps Recruit Training, very few former soldiers serve in the Marine Corps.


United States Air Force

While some of United States Marine Corps Aviation, Marine Corps Aviation assets ultimately derive from the Navy, a large amount of support is drawn from the United States Air Force. The Marine Corps makes extensive use of the USAF Air Mobility Command to airlift marines and equipment, along with utilizing close air support from the Air Force. The Air Force may also attach Tactical Air Control Party units to conventional Marine ground forces to provide coordination for close air support. The Air Force traditionally provides the Joint Force Air Component Commander (JFACC) who controls "sorties for air defense, and long range interdiction and reconnaissance" while the MAGTF commander retains control of the Marines' organic aviation assets, however Marine Aviation missions not directly in the support of the MAGTF will be typically controlled by the JFACC.


United States Coast Guard

The Marine Corps shares a sphere of operation with units of the United States Coast Guard, including operation of the Joint Maritime Training Center (JMTC) (previously known as the Special Missions Training Center (SMTC)), a joint Coast Guard, Navy, and Marine Corps training facility located on the Marine Corps Base Camp Lejeune in Camp Lejeune, North Carolina.


Budget

According to the Department of the Navy (from whence the Marine Corps receives its funding), for FY 2019, the Marine Corps received $43.2B in funding. * not exact since certain fields are combined with Navy expenditures In 2013, the USMC became the first American military branch to ever have a fully audited annual budget.


See also

* Marine Corps Key Volunteer Network * United States Marine Corps Women's Reserve * List of United States Marine Corps acronyms and expressions


Notes


References


Citations


Sources

*


Further reading

* * * *


External links


Marines.mil – Official site

Marine Corps History Division

Marine Corps Heritage Foundation
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