A navy, naval force, or maritime force is the branch of a nation's
armed forces
A military, also known collectively as armed forces, is a heavily armed, highly organized force primarily intended for warfare. It is typically authorized and maintained by a sovereign state, with its members identifiable by their distinct ...
principally designated for
naval
A navy, naval force, or maritime force is the branch of a nation's armed forces principally designated for naval warfare, naval and amphibious warfare; namely, lake-borne, riverine, littoral zone, littoral, or ocean-borne combat operations and ...
and
amphibious warfare
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 ...
; namely,
lake-borne,
riverine,
littoral, or
ocean-borne
combat
Combat ( French for ''fight'') is a purposeful violent conflict meant to physically harm or kill the opposition. Combat may be armed (using weapons) or unarmed ( not using weapons). Combat is sometimes resorted to as a method of self-defense, or ...
operations and related functions. It includes anything conducted by surface
ships
A ship is a large watercraft that travels the world's oceans and other sufficiently deep waterways, carrying cargo or passengers, or in support of specialized missions, such as defense, research, and fishing. Ships are generally distinguished ...
,
amphibious
Amphibious means able to use either land or water. In particular it may refer to:
Animals
* Amphibian, a vertebrate animal of the class Amphibia (many of which live on land and breed in water)
* Amphibious caterpillar
* Amphibious fish, a fish ...
ships,
submarine
A submarine (or sub) is a watercraft capable of independent operation underwater. It differs from a submersible, which has more limited underwater capability. The term is also sometimes used historically or colloquially to refer to remotely op ...
s, and seaborne
aviation, as well as ancillary support, communications, training, and other fields. The strategic offensive role of a navy is
projection of force
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 e ...
into areas beyond a country's shores (for example, to protect
sea-lanes, deter or confront
piracy, ferry troops, or attack other navies, ports, or shore installations). The strategic defensive purpose of a navy is to frustrate seaborne projection-of-force by enemies. The strategic task of the navy also may incorporate
nuclear deterrence
Deterrence theory refers to the scholarship and practice of how threats or limited force by one party can convince another party to refrain from initiating some other course of action. The topic gained increased prominence as a military strategy ...
by use of
submarine-launched ballistic missile
A submarine-launched ballistic missile (SLBM) is a ballistic missile capable of being launched from submarines. Modern variants usually deliver multiple independently targetable reentry vehicles (MIRVs), each of which carries a nuclear warhead ...
s. Naval operations can be broadly divided between riverine and littoral applications (
brown-water navy), open-ocean applications (
blue-water navy
A blue-water navy is a maritime force capable of operating globally, essentially across the deep waters of open oceans. While definitions of what actually constitutes such a force vary, there is a requirement for the ability to exercise sea cont ...
), and something in between (
green-water navy
A green-water navy is a maritime force that is capable of operating in its nation's littoral zones and has limited competency to operate in the surrounding marginal seas. It is a relatively new term, and has been created to better distinguish, ...
), although these distinctions are more about strategic scope than tactical or operational division.
Etymology and meanings
First attested in English in the early 14th century, the word "navy" came via
Old French ''navie'', "fleet of ships", from the
Latin ''navigium'', "a vessel, a ship, bark, boat", from ''navis'', "ship". The word "naval" came from Latin ''navalis'', "pertaining to ship";
cf. Greek (''naus''), "ship", (''nautes''), "seaman, sailor". The earliest attested form of the word is in the
Mycenaean Greek compound word , ''na-u-do-mo'' (*), "shipbuilders", written in
Linear B
Linear B was a syllabic script used for writing in Mycenaean Greek, the earliest attested form of Greek. The script predates the Greek alphabet by several centuries. The oldest Mycenaean writing dates to about 1400 BC. It is descended from ...
syllabic script.
The word formerly denoted fleets of both commercial and military nature. In modern usage "navy" used alone always denotes a military fleet, although the term "
merchant navy" for a commercial fleet
still incorporates the non-military
word sense. This overlap in word senses between commercial and military fleets grew out of the inherently
dual-use nature of fleets; centuries ago, nationality was a trait that unified a fleet across both civilian and military uses. Although nationality of commercial vessels has little importance in peacetime trade other than for
tax avoidance, it can have greater meaning during wartime, when
supply chain
In commerce, a supply chain is a network of facilities that procure raw materials, transform them into intermediate goods and then final products to customers through a distribution system. It refers to the network of organizations, people, acti ...
s become matters of patriotic attack and defense, and when in some cases private vessels are even temporarily converted to military vessels. The latter was especially important, and common, before 20th-century military technology existed, when merely adding
artillery and
naval infantry
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 (refle ...
to any sailing vessel could render it fully as martial as any military-owned vessel. Such
privateering has been rendered obsolete in blue-water strategy since modern missile and aircraft systems grew to leapfrog over artillery and infantry in many respects; but privateering nevertheless remains potentially relevant in
littoral warfare
In military and naval warfare, littoral warfare is operations in and around the littoral zone, within a certain distance of shore, including surveillance, mine-clearing and support for landing operations and other types of combat shifting from ...
of a
limited
Limited may refer to:
Arts and media
*''Limited Inc'', a 1988 book by Jacques Derrida
*Limited series (comics), a comic book series with predetermined length
Businesses
*Limited Brands, an American company - owners of Victoria's Secret, Bath & Bo ...
and
asymmetric nature.
History
Naval warfare developed when humans first fought from water-borne vessels. Before the introduction of the
cannon and ships with enough capacity to carry them, navy warfare primarily involved ramming and boarding actions. In the time of
ancient Greece and the
Roman Empire, naval warfare centered on long, narrow vessels powered by banks of
oarsmen
Rowing is the act of propelling a human-powered watercraft using the sweeping motions of oars to displace water and generate reactional propulsion. Rowing is functionally similar to paddling, but rowing requires oars to be mechanically atta ...
(such as
triremes and
quinquereme
From the 4th century BC on, new types of oared warships appeared in the Mediterranean Sea, superseding the trireme and transforming naval warfare. Ships became increasingly large and heavy, including some of the largest wooden ships hitherto con ...
s) designed to ram and sink enemy vessels or come alongside the enemy vessel so its occupants could be attacked hand-to-hand. Naval warfare continued in this vein through the
Middle Ages until the cannon became commonplace and capable of being reloaded quickly enough to be reused in the same battle.
The
Chola Dynasty of medieval
Tamil Nadu was known as one of the greatest naval powers of its time from 300 BC to 1279 AD. The
Chola Navy, Chola kadarpadai comprised the naval forces of the
Chola Empire along with several other Naval-arms of the country. The Chola navy played a vital role in the expansion of the Chola Tamil kingdom, including the conquest of the
Sri Lanka
Sri Lanka (, ; si, ශ්රී ලංකා, Śrī Laṅkā, translit-std=ISO (); ta, இலங்கை, Ilaṅkai, translit-std=ISO ()), formerly known as Ceylon and officially the Democratic Socialist Republic of Sri Lanka, is an ...
islands, Kadaaram (Present day Burma), Sri Vijaya (present day Southeast Asia), the spread of Hinduism,
Tamil architecture and
Tamil culture to Southeast Asia and in curbing the piracy in Southeast Asia in 900 CE. In
ancient China
The earliest known written records of the history of China date from as early as 1250 BC, from the Shang dynasty (c. 1600–1046 BC), during the reign of king Wu Ding. Ancient historical texts such as the '' Book of Documents'' (early chapte ...
, large naval battles were known since the
Qin dynasty (''also see''
Battle of Red Cliffs
The Battle of Red Cliffs, also known as the Battle of Chibi, was a decisive naval battle in the winter of AD 208–209 at the end of the Han dynasty, about twelve years prior to the beginning of the Three Kingdoms period in Chinese history. T ...
, 208), employing the war
junk during the
Han dynasty. However, China's first official standing navy was not established until the
Southern Song dynasty
The Song dynasty (; ; 960–1279) was an imperial dynasty of China that began in 960 and lasted until 1279. The dynasty was founded by Emperor Taizu of Song following his usurpation of the throne of the Later Zhou. The Song conquered the rest ...
in the 12th century, a time when
gunpowder was a revolutionary new application to warfare.
Nusantara
Nusantara most commonly refers to:
*Nusantara (archipelago), an Old Javanese term which initially referred to the conquered territories of the Majapahit empire, corresponding to present-day Indonesia
*Nusantara (planned city), the future capital ci ...
n
thalassocracies made extensive use of naval power and technologies. This enabled the seafaring local people (either Malays of
Srivijaya
Srivijaya ( id, Sriwijaya) was a Buddhist thalassocratic empire based on the island of Sumatra (in modern-day Indonesia), which influenced much of Southeast Asia. Srivijaya was an important centre for the expansion of Buddhism from the 7th t ...
or Javanese of
Medang) to attack as far as the coast of
Tanzania and
Mozambique with 1000 boats and attempted to take the citadel of Qanbaloh, about 7,000 km to their West, in 945–946 AD.
[Kumar, Ann (2012). 'Dominion Over Palm and Pine: Early Indonesia’s Maritime Reach', in Geoff Wade (ed.), ''Anthony Reid and the Study of the Southeast Asian Past'' (Singapore: Institute of Southeast Asian Studies), 101–122.] In 1350 AD
Majapahit
Majapahit ( jv, ꦩꦗꦥꦲꦶꦠ꧀; ), also known as Wilwatikta ( jv, ꦮꦶꦭ꧀ꦮꦠꦶꦏ꧀ꦠ; ), was a Javanese people, Javanese Hinduism, Hindu-Buddhism, Buddhist thalassocracy, thalassocratic empire in Southeast Asia that was ba ...
launched its largest military expedition, the invasion of
Pasai, with 400 large
jong and innumerable smaller vessels.
[Hill (June 1960). "]Hikayat Raja-Raja Pasai Hikayat Raja-raja Pasai (حكاية راج-راج ڤاسا translated as “Chronicle of the Kings of Pasai”) is perhaps the earliest work in Malay on the first Malay-Muslim kingdom of Samudera-Pasai. In the story, Merah Silu met Muhammad in his ...
". ''Journal of the Malaysian Branch of the Royal Asiatic Society''. 33: p. 98 and 157: "Then he directed them to make ready all the equipment and munitions of war needed for an attack on the land of Pasai – about four hundred of the largest junks, and also many barges (malangbang) and galleys." See also Nugroho (2011). p. 270 and 286, quoting ''Hikayat Raja-Raja Pasai'', 3: 98: "''Sa-telah itu, maka di-suroh baginda musta'idkan segala kelengkapan dan segala alat senjata peperangan akan mendatangi negeri Pasai itu, sa-kira-kira empat ratus jong yang besar-besar dan lain daripada itu banyak lagi daripada malangbang dan kelulus''." (After that, he is tasked by His Majesty to ready all the equipment and all weapons of war to come to that country of Pasai, about four hundred large jongs and other than that much more of malangbang and kelulus.) The second largest military expedition, invasion of
Singapura in 1398, Majapahit deployed 300 jong with no less than 200,000 men.
[Nugroho (2011), p. 271, 399–400, quoting ''Sejarah Melayu'', 10.4: 77: "... ''maka bagindapun segera menyuruh berlengkap tiga ratus buah jung, lain dari pada itu kelulus, pelang, jongkong, tiada terbilang lagi''." (then His Majesty immediately ordered to equip three hundred jong, other than that kelulus, pelang, jongkong in uncountable numbers.)] The average jong used by Majapahit would be about 76.18–79.81 m
LOA, carrying 600–700 men, with 1200–1400 tons
deadweight.
The mass and
deck space required to carry a large number of cannon made oar-based propulsion impossible, and ships came to rely primarily on
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 may ...
s. Warships were designed to carry increasing numbers of cannon and
naval tactics evolved to bring a ship's firepower to bear in a
broadside
Broadside or broadsides may refer to:
Naval
* Broadside (naval), terminology for the side of a ship, the battery of cannon on one side of a warship, or their near simultaneous fire on naval warfare
Printing and literature
* Broadside (comic ...
, with
ships-of-the-line arranged in a
line of battle.
The development of large capacity, sail-powered ships carrying cannon led to a rapid expansion of
European navies, especially the
Spanish and
Portuguese navies which dominated in the 16th and early 17th centuries, and helped propel the
age of exploration and
colonialism. The repulsion of the
Spanish Armada
The Spanish Armada (a.k.a. the Enterprise of England, es, Grande y Felicísima Armada, links=no, lit=Great and Most Fortunate Navy) was a Spanish fleet that sailed from Lisbon in late May 1588, commanded by the Duke of Medina Sidonia, an aris ...
(1588) by the English fleet revolutionized naval warfare by the success of a guns-only strategy and caused a major overhaul of the
Spanish Navy, partly along
English lines, which resulted in even greater dominance by the Spanish. From the beginning of the 17th century the Dutch cannibalized the
Portuguese Empire in the
East and, with the immense wealth gained, challenged Spanish
hegemony at sea. From the 1620s, Dutch raiders seriously troubled Spanish shipping and, after a number of battles which went both ways, the
Dutch Navy finally broke the long dominance of the Spanish Navy in the
Battle of the Downs (1639).
England emerged as a major naval power in the mid-17th century in the first
Anglo-Dutch war
The Anglo–Dutch Wars ( nl, Engels–Nederlandse Oorlogen) were a series of conflicts mainly fought between the Dutch Republic and England (later Great Britain) from mid-17th to late 18th century. The first three wars occurred in the second ...
with a technical victory. Successive decisive Dutch victories in the second and third Anglo-Dutch Wars confirmed the Dutch mastery of the seas during the
Dutch Golden Age
The Dutch Golden Age ( nl, Gouden Eeuw ) was a period in the history of the Netherlands, roughly spanning the era from 1588 (the birth of the Dutch Republic) to 1672 (the Rampjaar, "Disaster Year"), in which Dutch trade, science, and Dutch art, ...
, financed by the expansion of the
Dutch Empire. The
French Navy won some important victories near the end of the 17th century but a focus upon land forces led to the French Navy's relative neglect, which allowed the
Royal Navy to emerge with an ever-growing advantage in size and quality, especially in tactics and experience, from 1695. As a response to growing naval influence of the navies of Portuguese, the warrior king of the Marathas,
Shivaji laid the foundation of the
Maratha navy in 1654.
Throughout the 18th century the Royal Navy gradually gained ascendancy over the French Navy, with victories in the
War of Spanish Succession (1701–1714), inconclusive battles in the
War of Austrian Succession (1740–1748), victories in the
Seven Years' War (1754–1763), a partial reversal during the
American War of Independence
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 ...
(1775–1783), and consolidation into uncontested supremacy during the 19th century from the
Battle of Trafalgar in 1805. These conflicts saw the development and refinement of
tactics which came to be called the
line of battle.
The next stage in the evolution of naval warfare was the introduction of
metal plating along the hull sides. The increased mass required steam-powered engines, resulting in an arms race between armor and weapon thickness and firepower. The first armored vessels, the French and British , made wooden vessels obsolete. Another significant improvement came with the invention of the rotating turrets, which allowed the guns to be aimed independently of ship movement. The battle between and during the
American Civil War (1861–1865) is often cited as the beginning of this age of maritime conflict. The
Russian Navy was considered the third strongest in the world on the eve of the
Russo-Japanese War, which turned to be a catastrophe for the Russian military in general and the Russian Navy in particular. Although neither party lacked courage, the Russians were defeated by the Japanese in the Battle of Port Arthur, which was the first time in warfare that mines were used for offensive purposes. The warships of the Baltic Fleet sent to the Far East were lost in the Battle of Tsushima. A further step change in naval firepower occurred when the United Kingdom launched in 1906, but
naval tactics still emphasized the line of battle.
The first practical military
submarine
A submarine (or sub) is a watercraft capable of independent operation underwater. It differs from a submersible, which has more limited underwater capability. The term is also sometimes used historically or colloquially to refer to remotely op ...
s were developed in the late 19th century and by the end of
World War I had proven to be a powerful arm of naval warfare. During
World War II,
Nazi Germany's submarine fleet of
U-boats almost starved the United Kingdom into submission and inflicted
tremendous losses on U.S. coastal shipping. The , a
sister ship
A sister ship is a ship of the same class or of virtually identical design to another ship. Such vessels share a nearly identical hull and superstructure layout, similar size, and roughly comparable features and equipment. They often share a ...
of , was almost put out of action by miniature submarines known as
X-Craft
The X class was a World War II midget submarine class built for the Royal Navy during 1943–44. It was substantially larger than the original Chariot manned torpedo.
Known individually as X-Craft, the vessels were designed to be towed to thei ...
. The X-Craft severely damaged her and kept her in port for some months.
A major paradigm shift in naval warfare occurred with the introduction of 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 ...
. First at
Taranto in 1940 and then at
Pearl Harbor in 1941, the carrier demonstrated its ability to strike decisively at enemy ships out of sight and range of surface vessels. The
Battle of Leyte Gulf
The Battle of Leyte Gulf ( fil, Labanan sa golpo ng Leyte, lit=Battle of Leyte gulf; ) was the largest naval battle of World War II and by some criteria the largest naval battle in history, with over 200,000 naval personnel involved. It was fou ...
(1944) was arguably the
largest naval battle in history; it was also the last battle in which battleships played a significant role. By the end of
World War II, the carrier had become the dominant force of naval warfare.
World War II also saw the
United States become by far the largest naval power in the world. In the late 20th and early 21st centuries, the
United States Navy possessed over 70% of the world's total numbers and total tonnage of naval vessels of 1,000 tons or greater.
[Weighing the US Navy Defense & Security Analysis, Volume 17, Issue December 3, 2001, pp 259-265] Throughout the rest of the 20th century, the
United States Navy would maintain a tonnage greater than that of the next 17 largest navies combined. During the
Cold War
The Cold War is a term commonly used to refer to a period of geopolitical tension between the United States and the Soviet Union and their respective allies, the Western Bloc and the Eastern Bloc. The term '' cold war'' is used because the ...
, the
Soviet Navy became a significant armed force, with large numbers of large, heavily armed
ballistic missile submarine
A ballistic missile submarine is a submarine capable of deploying submarine-launched ballistic missiles (SLBMs) with nuclear warheads. The United States Navy's hull classification symbols for ballistic missile submarines are SSB and SSBN – t ...
s and extensive use of heavy, long-ranged antisurface missiles to counter the numerous United States
carrier battle groups. Only two nations, the United States and
France, presently operate
CATOBAR
CATOBAR ("Catapult Assisted Take-Off But Arrested Recovery" or "Catapult Assisted Take-Off Barrier Arrested Recovery") is a system used for the launch and recovery of aircraft from the deck of an aircraft carrier. Under this technique, aircraft ...
carriers of any size, while
Russia,
China
China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ...
and
India operate sizeable
STOBAR
STOBAR ("short take-off but arrested recovery" or "short take-off, barrier-arrested recovery") is a system used for the launch and recovery of aircraft from the deck of an aircraft carrier, combining elements of "short take-off and vertical land ...
carriers (although all three are originally of Russian design). The
United Kingdom is also operating two carriers, which are the largest
STOVL vessels in service, and India is currently building one aircraft carrier, , and considering another. France is also looking at a
new carrier, probably using a CATOBAR system and possibly based on the British ''Queen Elizabeth'' design.
Operations
A navy typically operates from one or more
naval bases. The base is a
port that is specialized in naval operations, and often includes housing, a
munitions depot, docks for the vessels, and various repair facilities. During times of war temporary bases may be constructed in closer proximity to strategic locations, as it is advantageous in terms of patrols and station-keeping. Nations with historically strong naval forces have found it advantageous to obtain basing rights in other countries in areas of strategic interest.
Navy ships can operate independently or with a group, which may be a small
squadron of comparable ships, or a larger
naval fleet of various specialized ships. The commander of a fleet travels in the
flagship
A flagship is a vessel used by the commanding officer of a group of naval ships, characteristically a flag officer entitled by custom to fly a distinguishing flag. Used more loosely, it is the lead ship in a fleet of vessels, typically the fi ...
, which is usually the most powerful vessel in the group. Before radio was invented, commands from the flagship were communicated by means of flags. At night signal lamps could be used for a similar purpose. Later these were replaced by the radio transmitter, or the flashing light when radio silence was needed.
A "
blue water navy" is designed to operate far from the coastal waters of its home nation. These are ships capable of maintaining station for long periods of time in deep ocean, and will have a long
logistical
Logistics is generally the detailed organization and implementation of a complex operation. In a general business sense, logistics manages the flow of goods between the point of origin and the point of consumption to meet the requirements of ...
tail for their support. Many are also nuclear powered to save having to refuel. By contrast a "
brown water navy" operates in the coastal periphery and along inland waterways, where larger ocean-going naval vessels can not readily enter. Regional powers may maintain a "
green water navy" as a means of localized force projection. Blue water fleets may require specialized vessels, such as
minesweepers, when operating in the
littoral regions along the coast.
Traditions
A basic tradition is that all ships commissioned in a navy are referred to as ships rather than vessels, with the exception of destroyers and submarines, which are known as boats. The prefix on a ship's name indicates that it is a commissioned ship.
An important tradition on board naval vessels of some nations has been the
ship's bell. This was historically used to mark the passage of time, as warning devices in heavy fog, and for alarms and ceremonies.
The ship's captain, and more senior officers are "piped" aboard the ship using a
Boatswain's call
A boatswain's call, pipe or bosun's whistle is a pipe or a non-diaphragm type whistle used on naval ships by a boatswain.
The pipe consists of a narrow tube (the gun) which directs air over a metal sphere (the buoy) with a hole in the top. The ...
.
In the United States, the
First Navy Jack is a flag that has the words, "Don't Tread on Me" on the flag.
By English tradition, ships have been referred to as a "she". However, it was long considered bad luck to permit women to sail on board naval vessels. To do so would invite a terrible storm that would wreck the ship. The only women that were welcomed on board were
figureheads mounted on the prow of the ship.
Firing a cannon salute partially disarms the ship, so firing a cannon for no combat reason showed respect and trust. As the tradition evolved, the number of cannon fired became an indication of the rank of the official being saluted.
Naval organization
Ships
Historically, navy ships were primarily intended for warfare. They were designed to withstand damage and to inflict the same, but only carried munitions and supplies for the voyage (rather than merchant cargo). Often, other ships which were not built specifically for warfare, such as the
galleon or the armed merchant ships in
World War II, did carry armaments. In more recent times, navy ships have become more specialized and have included supply ships, troop transports, repair ships, oil tankers and other logistics support ships as well as combat ships.
Modern navy combat ships are generally divided into seven main categories:
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,
cruiser
A cruiser is a type of warship. Modern cruisers are generally the largest ships in a fleet after aircraft carriers and amphibious assault ships, and can usually perform several roles.
The term "cruiser", which has been in use for several hu ...
s,
destroyer
In naval terminology, a destroyer is a fast, manoeuvrable, long-endurance warship intended to escort
larger vessels in a fleet, convoy or battle group and defend them against powerful short range attackers. They were originally developed in ...
s,
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 and ...
s,
corvette
A corvette is a small warship. It is traditionally the smallest class of vessel considered to be a proper (or " rated") warship. The warship class above the corvette is that of the frigate, while the class below was historically that of the slo ...
s,
submarine
A submarine (or sub) is a watercraft capable of independent operation underwater. It differs from a submersible, which has more limited underwater capability. The term is also sometimes used historically or colloquially to refer to remotely op ...
s, and
amphibious assault ships. There are also support and auxiliary ships, including the
oiler,
minesweeper,
patrol boat, hydrographic and oceanographic
survey ship
A survey vessel is any type of ship or boat that is used for underwater surveys, usually to collect data for mapping or planning underwater construction or mineral extraction. It is a type of research vessel, and may be designed for the purpo ...
and
tender
Tender may refer to:
Entertainment Film
* ''Illegal Tender'' (2007), a film directed by Franc. Reyes
* ''Tender'' (2012), a short film by Liz Tomkins
* ''Tender'' (2019), a short film by Darryl Jones and Anthony Lucido
* ''Tender'' (2019), a sh ...
. During the
age of sail
The Age of Sail is a period that lasted at the latest from the mid-16th (or mid- 15th) to the mid- 19th centuries, in which the dominance of sailing ships in global trade and warfare culminated, particularly marked by the introduction of naval ...
, the ship categories were divided into the
ship of the line
A ship of the line was a type of naval warship constructed during the Age of Sail from the 17th century to the mid-19th century. The ship of the line was designed for the naval tactic known as the line of battle, which depended on the two colu ...
, frigate, and
sloop-of-war
In the 18th century and most of the 19th, a sloop-of-war in the Royal Navy was a warship with a single gun deck that carried up to eighteen guns. The rating system covered all vessels with 20 guns and above; thus, the term ''sloop-of-war'' enc ...
.
Naval ship names are typically prefixed by an abbreviation indicating the national navy in which they serve. For a list of the prefixes used with ship names (
HMS,
USS,
LÉ, etc.) see
ship prefix
A ship prefix is a combination of letters, usually abbreviations, used in front of the name of a civilian or naval ship that has historically served numerous purposes, such as identifying the vessel's mode of propulsion, purpose, or ownership/n ...
.
Today ships are significantly faster than in years past, thanks to much improved propulsion systems. Also, the efficiency of the engines has improved, in terms of fuel, and of how many sailors it takes to operate them. In World War II, ships needed to refuel very often. However, today ships can go on very long journeys without refueling. Also, in World War II, the engine room needed about a dozen sailors to work the many engines, however, today, only about 4–5 are needed (depending on the class of the ship). Today, naval strike groups on longer missions are always followed by a range of support and replenishment ships supplying them with anything from fuel and munitions, to medical treatment and postal services. This allows strike groups and combat ships to remain at sea for several months at a time.
Boats
The term "boat" refers to small craft limited in their use by size and usually not capable of making lengthy independent voyages at sea. The old navy adage to differentiate between ships and boats is that boats are capable of being carried by ships. (Submarines by this rule are ships rather than boats, but are customarily referred to as boats reflecting their previous smaller size.)
Navies use many types of boat, ranging from dinghies to landing craft. They are powered by either diesel engines, out-board gasoline engines, or waterjets. Most boats are built of aluminum, fiberglass, or steel.
Rigid-hulled inflatable boats are also used.
Patrol boats are used for patrols of coastal areas, lakes and large rivers.
Landing craft
Landing craft are small and medium seagoing watercraft, such as boats and barges, used to convey a landing force (infantry and vehicles) from the sea to the shore during an amphibious assault. The term excludes landing ships, which are larger. Pr ...
are designed to carry troops, vehicles, or cargo from ship to shore under combat conditions, to unload, to withdraw from the beach, and to return to the ship. They are rugged, with powerful engines, and usually armed. There are many types in today's navies including
hovercraft
A hovercraft, also known as an air-cushion vehicle or ACV, is an amphibious Craft (vehicle), craft capable of travelling over land, water, mud, ice, and other surfaces.
Hovercraft use blowers to produce a large volume of air below the hull ...
. They will typically have a power-operated bow ramp, a cargo well and after structures that house engine rooms, pilot houses, and stowage compartments. These boats are sometimes carried by larger ships.
Special operations craft are high-speed craft used for insertion and extraction of special forces personnel and some may be transportable (and deployed) by air.
Boats used in non-combat roles include lifeboats, mail boats, line handling boats, buoy boats, aircraft rescue boats, torpedo retrievers, explosive ordnance disposal craft, utility boats, dive boats, targets, and work boats. Boats are also used for survey work, tending divers, and minesweeping operations. Boats for carrying cargo and personnel are sometimes known as launches, gigs, barges or shore party boats.
Units
Naval forces are typically arranged into units based on the number of ships included, a single ship being the smallest operational unit. Ships may be combined into
squadrons or
flotillas, which may be formed into
fleets. The largest unit size may be the whole Navy or
Admiralty.
A
task force can be assembled using ships from different fleets for an operational task.
Personnel
Despite their acceptance in many areas of naval service,
female sailors
Female ( symbol: ♀) is the sex of an organism that produces the large non-motile ova (egg cells), the type of gamete (sex cell) that fuses with the male gamete during sexual reproduction.
A female has larger gametes than a male. Females ...
were not permitted to serve on board U.S. submarines until the U.S. Navy lifted the ban in April 2010. The major reasons historically cited by the U.S. Navy were the extended duty tours and close conditions which afford almost no privacy. The United Kingdom's Royal Navy has had similar restrictions. Australia, Canada, Norway, and Spain previously opened submarine service to women sailors.
Ranks
A navy will typically have two sets of ranks, one for
enlisted personnel and one for
officers.
Typical ranks for commissioned officers include the following, in ascending order (
Commonwealth
A commonwealth is a traditional English term for a political community founded for the common good. Historically, it has been synonymous with "republic". The noun "commonwealth", meaning "public welfare, general good or advantage", dates from the ...
ranks are listed first on each line; USA ranks are listed second in those instances where they differ from Commonwealth ranks):
*
Midshipman
A midshipman is an officer of the lowest rank, in the Royal Navy, United States Navy, and many Commonwealth navies. Commonwealth countries which use the rank include Canada (Naval Cadet), Australia, Bangladesh, Namibia, New Zealand, South Afr ...
/
Ensign /
Corvette Lieutenant
*
Sub Lieutenant /
Lieutenant Junior Grade /
Frigate Lieutenant
*
Lieutenant (Commonwealth & USA)/
Ship-of-the-Line Lieutenant /
Captain Lieutenant
*
Lieutenant Commander (Commonwealth & USA)/
Corvette Captain
*
Commander
Commander (commonly abbreviated as Cmdr.) is a common naval officer rank. Commander is also used as a rank or title in other formal organizations, including several police forces. In several countries this naval rank is termed frigate captain.
...
(Commonwealth & USA)/
Frigate Captain
*
Captain
Captain is a title, an appellative for the commanding officer of a military unit; the supreme leader of a navy ship, merchant ship, aeroplane, spacecraft, or other vessel; or the commander of a port, fire or police department, election precinct, e ...
(Commonwealth & USA)/
Ship-of-the-Line Captain
*
Commodore /
Flotilla Admiral
Flotilla admiral is the lowest flag rank, a rank above captain, in the modern navies of Belgium, Bulgaria, Denmark, Finland, Germany and Sweden. It corresponds to the ranks of commodore or rear admiral (lower half) in the navies of the United ...
(in USA only:
Rear Admiral (lower half))
*
Rear Admiral
Rear admiral is a senior naval flag officer rank, equivalent to a major general and air vice marshal and above that of a commodore and captain, but below that of a vice admiral. It is regarded as a two star "admiral" rank. It is often regarde ...
(in USA only:
Rear Admiral (upper half))
*
Vice Admiral (Commonwealth & USA)
*
Admiral
Admiral is one of the highest ranks in some navies. In the Commonwealth nations and the United States, a "full" admiral is equivalent to a "full" general in the army or the air force, and is above vice admiral and below admiral of the fleet, ...
(Commonwealth & USA)
*
Admiral of the Fleet (Commonwealth) /
Fleet Admiral (USA) /
Grand Admiral
"Flag officers" include any rank that includes the word "admiral" (or commodore in services other than the US Navy), and are generally in command of a
battle group, strike group or similar flotilla of ships, rather than a single ship or aspect of a ship. However, commodores can also be temporary or honorary positions. For example, during World War II, a Navy captain was assigned duty as a convoy commodore, which meant that he was still a captain, but in charge of all the merchant vessels in the convoy.
The most senior rank employed by a navy will tend to vary depending on the size of the navy and whether it is wartime or peacetime, for example, few people have ever held the rank of Fleet Admiral in the U.S. Navy, the chief of the
Royal Australian Navy holds the rank of Vice Admiral, and the chief of the
Irish Naval Service
The Naval Service ( ga, An tSeirbhís Chabhlaigh) is the maritime component of the Defence Forces of Ireland and is one of the three branches of the Irish Defence Forces. Its base is in Haulbowline, County Cork.
Though preceded by earlier mar ...
holds the rank of Commodore.
Naval infantry
Naval infantry, commonly known as marines, are a category of infantry that form part of a state's naval forces and perform roles on land and at sea, including
amphibious operations, as well as other, naval roles. They also perform other tasks, including land warfare, separate from naval operations.
During the era of the
Roman empire, naval forces included marine
legionaries for
maritime boarding actions. These were troops primarily trained in land warfare, and did not need to be skilled at handling a ship. Much later during the age of sail, a component of marines served a similar role, being ship-borne soldiers who were used either during boarding actions, as sharp-shooters, or in raids along shorelines.
The Spanish ''
Infantería de Marina'' was formed in 1537, making it the oldest, current marine force in the world. The
British 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 light infantry and also one of the five fighting arms of the Royal Navy. The Corps of Royal Marine ...
combine being both a ship-based force and also being specially trained in
commando-style operations and tactics, operating in some cases separately from the rest of the Royal Navy. The Royal Marines also have their own
special forces
Special forces and special operations forces (SOF) are military units trained to conduct special operations. NATO has defined special operations as "military activities conducted by specially designated, organized, selected, trained and equip ...
unit.
In the majority of countries, the marine force is an integral part of the navy but there are variations such as the French
Troupes de marine which is actually part of the
French Army. The
United States Marine Corps is a separate armed service within the United States Department of the Navy, with its own leadership structure.
Naval aviation
Naval aviation is the application of
military air power by navies, whether from
warships that embark aircraft, or land bases.
In World War I several navies used
floatplane
A floatplane is a type of seaplane with one or more slender floats mounted under the fuselage to provide buoyancy. By contrast, a flying boat uses its fuselage for buoyancy. Either type of seaplane may also have landing gear suitable for land, ...
s and
flying boat
A flying boat is a type of fixed-winged seaplane with a hull, allowing it to land on water. It differs from a floatplane in that a flying boat's fuselage is purpose-designed for floatation and contains a hull, while floatplanes rely on fusela ...
s - mainly for
scouting
Scouting, also known as the Scout Movement, is a worldwide youth movement employing the Scout method, a program of informal education with an emphasis on practical outdoor activities, including camping, woodcraft, aquatics, hiking, backpacking ...
. By World War II,
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 could carry bomber aircraft capable of attacking naval and land targets, as well as fighter aircraft for defence. Since World War II helicopters have been embarked on smaller ships in roles such as anti-submarine warfare and transport. Some navies have also operated land-based aircraft in roles such as
maritime patrol and
training.
Naval aviation forces primarily perform naval roles at sea. However, they are also used in a variety of other roles.
Further reading
* Non-fiction:
** ''Combat Fleets of the World: Their Ships, Aircraft and Systems'' - Naval Institute Press. Published annually. Comprehensive.
**
Braudel, Fernand, ''The Mediterranean in the Ancient World''
**
Corbett, Sir Julian, ''Some Principles of Maritime Strategy'', 1911.
** Hughes, Jr., Wayne P., ''Fleet Tactics and Coastal Combat'', 1999, Naval Institute Press,
**
Kennedy, Paul. ''The Rise and Fall of British Naval Mastery''. New York: Scribner, 1976.
**
Mahan, Alfred Thayer
Alfred Thayer Mahan (; September 27, 1840 – December 1, 1914) was a United States naval officer and historian, whom John Keegan called "the most important American strategist of the nineteenth century." His book '' The Influence of Sea Power ...
, ''
The Influence of Sea Power upon History, 1660-1783'', 1918, Little Brown, Boston.
**
Marder, Arthur. ''The Anatomy of British Seapower''. New York: Octagon Books, 1940.
**
Marder, Arthur. "The Influence of History on Sea Power: The Royal Navy and the Lessons of 1914-1918," Pacific Historical Review. November, 1972.
**
Richmond, Herbert. ''National Policy and National Strength and other Essays''. London: Longman, Green and Co., 1928.
** Sprout, Harold and Margaret Sprout. ''Toward a New Order of Sea Power: American Naval Policy ... 1918-1922''. Princeton: Princeton University Press, 1940.
** Starr, Chester G., ''The Influence of Sea Power on Ancient History'', 1989, Oxford University Press,
** Tangredi, Sam, "Globalization and Maritime Power", 2002 -
National Defense University,
** Trafalgar 200 Through the Lens,
** Wombacher, Joerg and Joerg Felfe. (2012
United We Are Strong: An Investigation into Sense of Community among Navy Crews Armed Forces & Society, Vol. 38, No. 4
**
Woolley, Peter J. "The Role of Strategy in Great Power Decline," ''
Naval War College Review''. Vol. XLIX, no. 1 (1996).
* Fiction:
**
Alan Lewrie series by
Dewey Lambdin
Dewey Lambdin (January 26, 1945 – July 26, 2021) was an American nautical historical novelist. He was best known for his Alan Lewrie naval adventure series, spanning the American Revolution and the Napoleonic Wars. Besides the Alan Lewrie serie ...
**
Aubrey–Maturin series
The Aubrey–Maturin series is a sequence of nautical historical novels—20 completed and one unfinished—by English author Patrick O'Brian, set during the Napoleonic Wars and centring on the friendship between Captain Jack Aubrey of the Roy ...
by
Patrick O'Brian
**
Horatio Hornblower
Horatio Hornblower is a fictional officer in the British Royal Navy during the Napoleonic Wars, the protagonist of a series of novels and stories by C. S. Forester. He later became the subject of films, radio and television programmes, an ...
series by
C. S. Forester
Cecil Louis Troughton Smith (27 August 1899 – 2 April 1966), known by his pen name Cecil Scott "C. S." Forester, was an English novelist known for writing tales of naval warfare, such as the 12-book Horatio Hornblower series depicting a Roya ...
**
Richard Bolitho
The ''Bolitho'' novels are a series of nautical war novels written by British author Douglas Reeman (using the pseudonym Alexander Kent). They focus on the military careers of the fictional Richard Bolitho and Adam Bolitho in the Royal Navy, from ...
series by Alexander Kent (Pseudonym of
Douglas Reeman)
**
Tom Clancy, ''
The Hunt for Red October'', ''
Red Storm Rising''
**
See also
*
Blue-water navy
A blue-water navy is a maritime force capable of operating globally, essentially across the deep waters of open oceans. While definitions of what actually constitutes such a force vary, there is a requirement for the ability to exercise sea cont ...
*
List of naval battles
*
List of navies
*
Number of warships in service worldwide
*
List of submarine classes in service
*
List of naval ship classes in service
*
List of auxiliary ship classes in service
*
Modern naval tactics
Naval tactics and doctrine is the collective name for methods of engaging and defeating an enemy ship or fleet in battle at sea during naval warfare, the naval equivalent of military tactics on land.
Naval tactics are distinct from naval strat ...
*
Naval fleet
*
Naval warfare
Naval warfare is combat in and on the sea, the ocean, or any other battlespace involving a major body of water such as a large lake or wide river. Mankind has fought battles on the sea for more than 3,000 years. Even in the interior of large la ...
*
Navies of landlocked countries
A ''landlocked navy'' is a naval force operated by a country that does not have a coastline. While these states are unable to develop a sea-going, blue-water navy, they may still deploy armed forces on major lakes or rivers.
There are several r ...
*
Marines
Notes
References
External links
Naval Technology- News, projects, images and white papers on the naval industry
NOSI (Naval Open Source Intelligence)- a library of world naval operational news
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{{Authority control
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