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Military organization or military organisation is the structuring of the
armed force 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 ...
s of a
state State may refer to: Arts, entertainment, and media Literature * ''State Magazine'', a monthly magazine published by the U.S. Department of State * ''The State'' (newspaper), a daily newspaper in Columbia, South Carolina, United States * ''Our S ...
so as to offer such
military capability Military capability is defined by the Australian Defence Force as "the ability to achieve a desired effect in a specific operating environment". It is defined by three interdependent factors: combat readiness, sustainable capability and force stru ...
as a national defense policy may require. In some countries paramilitary forces are included in a nation's armed forces, though not considered military. Armed forces that are not a part of military or paramilitary organizations, such as insurgent forces, often
mimic MIMIC, known in capitalized form only, is a former simulation computer language developed 1964 by H. E. Petersen, F. J. Sansom and L. M. Warshawsky of Systems Engineering Group within the Air Force Materiel Command at the Wright-Patterson AFB in ...
military organizations, or use ''
ad hoc Ad hoc is a Latin phrase meaning literally 'to this'. In English, it typically signifies a solution for a specific purpose, problem, or task rather than a generalized solution adaptable to collateral instances. (Compare with '' a priori''.) C ...
'' structures, while formal military organization tends to use hierarchical forms.


History

The use of formalized ranks in a hierarchical structure came into widespread use with the
Roman Army The Roman army (Latin: ) was the armed forces deployed by the Romans throughout the duration of Ancient Rome, from the Roman Kingdom (c. 500 BC) to the Roman Republic (500–31 BC) and the Roman Empire (31 BC–395 AD), and its medieval contin ...
. In modern times, executive control, management and administration of military organization is typically undertaken by governments through a
government department Ministry or department (also less commonly used secretariat, office, or directorate) are designations used by first-level executive bodies in the machinery of governments that manage a specific sector of public administration." Энцикло ...
within the structure of
public administration Public Administration (a form of governance) or Public Policy and Administration (an academic discipline) is the implementation of public policy, administration of government establishment (public governance), management of non-profit est ...
, often known as a ministry of defence or department of defense. These in turn manage
military branches 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 ...
that themselves command formations and units specialising in combat,
combat support In the United States Army, the term combat support refers to units that provide fire support and operational assistance to combat elements. Combat support units provide specialized support functions to combat units in the following areas * Chemi ...
and combat-service support.


Executive control, management and administration

The usually civilian or partly civilian executive control over the national military organization is exercised in
democracies Democracy (From grc, δημοκρατία, dēmokratía, ''dēmos'' 'people' and ''kratos'' 'rule') is a form of government in which the people have the authority to deliberate and decide legislation (" direct democracy"), or to choose go ...
by an elected political leader as a member of the government's
cabinet Cabinet or The Cabinet may refer to: Furniture * Cabinetry, a box-shaped piece of furniture with doors and/or drawers * Display cabinet, a piece of furniture with one or more transparent glass sheets or transparent polycarbonate sheets * Filing ...
, usually known as a
minister of defence A defence minister or minister of defence is a cabinet official position in charge of a ministry of defense, which regulates the armed forces in sovereign states. The role of a defence minister varies considerably from country to country; in som ...
. In presidential systems, such as the
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territori ...
, the president is the commander-in-chief, and the cabinet-level defense minister is second in command. Subordinated to that position are often
secretaries A secretary, administrative professional, administrative assistant, executive assistant, administrative officer, administrative support specialist, clerk, military assistant, management assistant, office secretary, or personal assistant is a wh ...
for specific major operational divisions of the armed forces as a whole, such as those that provide general support services to the military, including their dependants. Then there are the heads of specific departmental agencies responsible for the provision and management of specific skill- and knowledge-based service such as strategic advice, capability development assessment, or military science provision of research, and design and development of technologies. Within each departmental agency will be found administrative branches responsible for further agency business specialization work.


Military branches

In most countries the ''armed forces'' are divided into three
military branches 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 ...
(also ''service, armed service, or military service''):
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 ...
,
navy A navy, naval force, or maritime force is the branch of a nation's armed forces principally designated for naval and amphibious warfare; namely, lake-borne, riverine, littoral, or ocean-borne combat operations and related functions. It in ...
, 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 ...
. Many countries have a variation on the standard model of three basic military branches. Some nations also organize their
space force A space force is a military branch of a nation's armed forces that conducts military operations in outer space and space warfare. The world's first space force was the Russian Space Forces, established in 1992 as an independent military service. ...
,
marines 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 ...
, and special forces or
strategic missile forces The Strategic Rocket Forces of the Russian Federation or the Strategic Missile Forces of the Russian Federation (RVSN RF; russian: Ракетные войска стратегического назначения Российской Фед ...
as independent armed services. A nation's
coast guard A coast guard or coastguard is a maritime security organization of a particular country. The term embraces wide range of responsibilities in different countries, from being a heavily armed military force with customs and security duties to ...
may also be an independent branch of its military, although in many nations the coast guard is a
law enforcement Law enforcement is the activity of some members of government who act in an organized manner to enforce the law by discovering, deterring, rehabilitating, or punishing people who violate the rules Rule or ruling may refer to: Education ...
or civil agency. A number of countries have no navy, for geographical reasons. In larger armed forces the culture between the different branches of the armed forces can be quite different. Most smaller countries have a single organization that encompasses all armed forces employed by the country in question. Armies of
developing countries A developing country is a sovereign state with a lesser developed industrial base and a lower Human Development Index (HDI) relative to other countries. However, this definition is not universally agreed upon. There is also no clear agreem ...
tend to consist primarily of
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 ...
, while
developed countries A developed country (or industrialized country, high-income country, more economically developed country (MEDC), advanced country) is a sovereign state that has a high quality of life, developed economy and advanced technological infrastruct ...
armies tend to have larger units manning expensive equipment and only a fraction of personnel in infantry units. It is worthwhile to make mention of the term ''
joint A joint or articulation (or articular surface) is the connection made between bones, ossicles, or other hard structures in the body which link an animal's skeletal system into a functional whole.Saladin, Ken. Anatomy & Physiology. 7th ed. McGraw- ...
''. In western militaries, a joint force is defined as a unit or formation comprising representation of combat power from two or more branches of the military.


Internal security forces

Gendarmeries, including equivalents such as
paramilitary forces A paramilitary is an organization whose structure, tactics, training, subculture, and (often) function are similar to those of a professional military, but is not part of a country's official or legitimate armed forces. Paramilitary units carr ...
,
internal troops The Internal Troops, full name Internal Troops of the Ministry for Internal Affairs (MVD) (russian: Внутренние войска Министерства внутренних дел, Vnutrenniye Voiska Ministerstva Vnutrennikh Del; abbreviat ...
and similar, are an internal security service common in most of the world, but uncommon in countries with English
common law In law, common law (also known as judicial precedent, judge-made law, or case law) is the body of law created by judges and similar quasi-judicial tribunals by virtue of being stated in written opinions."The common law is not a brooding omnipres ...
histories where civil police are employed to enforce the law, and there are tight restrictions on how the armed forces may be used to assist.


Commands, formations, and units

It is common, at least in the European and North American militaries, to refer to the building blocks of a military as s, s, and s. In a military context, a command is a collection of units and formations under the control of a single officer, although during the
Second World War 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 vast majority of the world's countries—including all of the great powers—forming two opposi ...
a command was also a name given to a battle group in the
US Army The United States Army (USA) is the land service branch of the United States Armed Forces. It is one of the eight U.S. uniformed services, and is designated as the Army of the United States in the U.S. Constitution.Article II, section 2, cla ...
. In general it is an administrative and executive strategic headquarters that is responsible to the national government or the national military headquarters. It is not uncommon for a nation's services to each consist of their own command (such as Land Component, Air Component, Naval Component, and Medical Component in the
Belgian Army The Land Component ( nl, Landcomponent, french: Composante terre) is the land branch of the Belgian Armed Forces. The King of the Belgians is the commander in chief. The current chief of staff of the Land Component is Major-General Pierre Gérard. ...
), but this does not preclude the existence of commands that are not service-based. A formation is defined by the
US Department of Defense The United States Department of Defense (DoD, USDOD or DOD) is an executive branch department of the federal government charged with coordinating and supervising all agencies and functions of the government directly related to national sec ...
as "two or more aircraft, ships, or units proceeding together under a commander". Fomin in the ''
Great Soviet Encyclopedia The ''Great Soviet Encyclopedia'' (GSE; ) is one of the largest Russian-language encyclopedias, published in the Soviet Union from 1926 to 1990. After 2002, the encyclopedia's data was partially included into the later ''Bolshaya rossiyskaya e ...
'' emphasised its combined-arms nature: "Formations are those military organisations which are formed from different speciality Arms and Services troop units to create a balanced, combined combat force. The formations only differ in their ability to achieve different scales of application of force to achieve different strategic, operational and tactical goals and mission objectives." It is a composite military organization that includes a mixture of integrated and operationally attached sub-units, and is usually combat-capable. Example of formations include:
division Division or divider may refer to: Mathematics *Division (mathematics), the inverse of multiplication *Division algorithm, a method for computing the result of mathematical division Military *Division (military), a formation typically consisting ...
s,
brigade A brigade is a major tactical military formation that typically comprises three to six battalions plus supporting elements. It is roughly equivalent to an enlarged or reinforced regiment. Two or more brigades may constitute a division. B ...
s,
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 a ...
s,
wings A wing is a type of fin that produces lift while moving through air or some other fluid. Accordingly, wings have streamlined cross-sections that are subject to aerodynamic forces and act as airfoils. A wing's aerodynamic efficiency is expre ...
, etc. Formation may also refer to
tactical formation Element: A group of soldiers A tactical formation (or order) is the arrangement or deployment of moving military forces such as infantry, cavalry, AFVs, military aircraft, or naval vessels. Formations were found in tribal societies such as the ...
, the physical arrangement or disposition of troops and weapons. Examples of formation in such usage include:
pakfront The Pakfront was a defensive military tactic developed by the German forces on the Eastern Front during the Second World War. It was named after the phonetic pronunciation of the acronym nomenclature for German towed anti-tank guns, PaK (''Panze ...
,
panzerkeil The Panzerkeil ("armoured wedge" or "tank wedge") was an offensive armoured tactic developed by German ''Kampfgruppe'' (battle groups) on the Eastern Front during World War II. The ''Panzerkeil'' was developed in response to the Soviet employment ...
,
testudo formation In ancient Roman warfare, the ''testudo'' or tortoise formation was a type of shield wall formation commonly used by the Roman legions during battles, particularly sieges. Formation In the ''testudo'' formation, the men would align their sh ...
, etc. A typical unit is a homogeneous military organization (either combat, combat-support or non-combat in capability) that includes service personnel predominantly from a single arm of service, or a branch of service, and its administrative and command functions are self-contained. Any unit subordinate to another unit is considered its sub-unit or minor unit. It is not uncommon in the United States for unit and formation to be used synonymously. In
Commonwealth of Nations The Commonwealth of Nations, simply referred to as the Commonwealth, is a political association of 56 member states, the vast majority of which are former territories of the British Empire. The chief institutions of the organisation are the ...
practice, formation is not used for smaller organizations such as battalions, which are instead called "units", and their constituent
platoon A platoon is a military unit typically composed of two or more squads, sections, or patrols. Platoon organization varies depending on the country and the branch, but a platoon can be composed of 50 people, although specific platoons may rang ...
s or
companies A company, abbreviated as co., is a legal entity representing an association of people, whether natural, legal or a mixture of both, with a specific objective. Company members share a common purpose and unite to achieve specific, declared go ...
are referred to as sub-units. In the Commonwealth, formations are divisions, brigades, etc. Different armed forces, and even different branches of service of the armed forces, may use the same name to denote different types of organizations. An example is the "squadron". In most navies a
squadron Squadron may refer to: * Squadron (army), a military unit of cavalry, tanks, or equivalent subdivided into troops or tank companies * Squadron (aviation), a military unit that consists of three or four flights with a total of 12 to 24 aircraft, ...
is a formation of several ships; in most air forces it is a unit; in the U.S. Army it is a battalion-sized cavalry unit; and in Commonwealth armies a squadron is a company-sized sub-unit.


Table of organization and equipment

A
table of organization and equipment A table of organization and equipment (TOE or TO&E) is the specified organization, staffing, and equipment of units. Also used in acronyms as 'T/O' and 'T/E'. It also provides information on the mission and capabilities of a unit as well as the u ...
(TOE or TO&E) is a document published by the U.S. Army Force Management Support Agency that prescribes the organization, manning, and equipage of units from divisional size and down, but also including the headquarters of Corps and Armies. It also provides information on the mission and capabilities of a unit as well as the unit's current status. A general TOE is applicable to a type of unit (for instance, infantry) rather than a specific unit (the 3rd Infantry Division). In this way, all units of the same branch (such as infantry) follow the same structural guidelines.


Modern hierarchy


Army hierarchy

The following table gives an overview of some of the terms used to describe army hierarchy in armed forces across the world. Whilst it is recognized that there are differences between armies of different nations, many are modeled on the
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, ...
or
American American(s) may refer to: * American, something of, from, or related to the United States of America, commonly known as the "United States" or "America" ** Americans, citizens and nationals of the United States of America ** American ancestry, pe ...
models, or both. However, many military units and formations go back in history for a long time, and were devised by various military thinkers throughout European history. For example, the modern ''Corps'' was first introduced in France about 1805 by Napoleon as a more flexible tactical grouping of two or more divisions during the
Napoleonic Wars The Napoleonic Wars (1803–1815) were a series of major global conflicts pitting the French Empire and its allies, led by Napoleon I, against a fluctuating array of European states formed into various coalitions. It produced a period of Fren ...
. Rungs may be skipped in this ladder: for example, typically NATO forces skip from battalion to brigade. Likewise, only large military powers may have organizations at the top levels and different armies and countries may also use traditional names, creating considerable confusion: for example, a British or Canadian armored regiment (battalion) is divided into
squadron Squadron may refer to: * Squadron (army), a military unit of cavalry, tanks, or equivalent subdivided into troops or tank companies * Squadron (aviation), a military unit that consists of three or four flights with a total of 12 to 24 aircraft, ...
s (companies) and
troop A troop is a military sub-subunit, originally a small formation of cavalry, subordinate to a squadron. In many armies a troop is the equivalent element to the infantry section or platoon. Exceptions are the US Cavalry and the King's Tr ...
s (platoons), whereas an American cavalry squadron (battalion) is divided into troops (companies) and platoons. In the French system (used by many African countries) the company is divided into sections (platoons) composed of 3 x "groupes de combat" of 7 soldiers, plus a group of vehicle crews and a HQ that includes 2 x snipers
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 ...
, army group,
region In geography, regions, otherwise referred to as zones, lands or territories, are areas that are broadly divided by physical characteristics ( physical geography), human impact characteristics ( human geography), and the interaction of humanity an ...
, and
theatre Theatre or theater is a collaborative form of performing art that uses live performers, usually actors or actresses, to present the experience of a real or imagined event before a live audience in a specific place, often a stage. The perform ...
are all large formations that vary significantly between armed forces in size and hierarchy position. While
division Division or divider may refer to: Mathematics *Division (mathematics), the inverse of multiplication *Division algorithm, a method for computing the result of mathematical division Military *Division (military), a formation typically consisting ...
s were the traditional level at which support elements (field artillery, hospital, logistics and maintenance, etc.) were added to the unit structure, since World War II, many brigades now have such support units, and since the 1980s, regiments also have been receiving support elements. A regiment with such support elements is called a
regimental combat team A regimental combat team (RCT) is a provisional major infantry unit which has seen use by branches of the United States Armed Forces. It is formed by augmenting a regular infantry regiment with smaller combat, combat support and combat service ...
in US military parlance, or a battlegroup in the UK and other forces. Canadian Army doctrine also includes the
combat team A combat team is temporary grouping of military organizations of differing types to accomplish a defined mission or objective. Usage varies between commonwealth nations, where the term applies to a sub-unit level grouping, and the United States, wh ...
which is a company of infantry augmented with tanks, or a squadron of tanks augmented with infantry, or the combination of a full company of infantry with a full squadron of tanks. During
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 vast majority of the world's countries—including all of the great powers—forming two opposing ...
the
Red Army The Workers' and Peasants' Red Army ( Russian: Рабо́че-крестья́нская Кра́сная армия),) often shortened to the Red Army, was the army and air force of the Russian Soviet Federative Socialist Republic and, afte ...
used the same basic organizational structure. However, in the beginning many units were greatly underpowered and their size was actually one level below on the ladder that is usually used elsewhere; for example, a division in the early-WWII Red Army would have been about the size of most nations' regiments or brigades. At the top of the ladder, what other nations would call an army group, the Red Army called a
front Front may refer to: Arts, entertainment, and media Films * ''The Front'' (1943 film), a 1943 Soviet drama film * ''The Front'', 1976 film Music * The Front (band), an American rock band signed to Columbia Records and active in the 1980s and e ...
. By contrast, during the same period the German
Wehrmacht The ''Wehrmacht'' (, ) were the unified armed forces of Nazi Germany from 1935 to 1945. It consisted of the ''Heer'' (army), the '' Kriegsmarine'' (navy) and the ''Luftwaffe'' (air force). The designation "''Wehrmacht''" replaced the previo ...
army groups, particularly on the Eastern Front, such as Army Group Centre significantly exceeded the above numbers, and were more cognate with the Soviet Strategic Directions.


Navy hierarchy

Naval organization at the
flotilla A flotilla (from Spanish, meaning a small ''flota'' ( fleet) of ships), or naval flotilla, is a formation of small warships that may be part of a larger fleet. Composition A flotilla is usually composed of a homogeneous group of the same clas ...
level and higher is less commonly abided by, as ships operate in smaller or larger groups in various situations that may change at a moment's notice. However, there is some common terminology used throughout navies to communicate the general concept of how many vessels might be in a unit. Navies are generally organized into groups for a specific purpose, usually strategic, and these organizational groupings appear and disappear frequently based on the conditions and demands placed upon a navy. This contrasts with army organization where units remain static, with the same men and equipment, over long periods of time. The five-star ranks of admiral of the fleet and fleet admiral have largely been out of regular use since the 1990s, with the exception of ceremonial or honorary appointments. Currently, all major navies ( blue-water and green-water navies) are commanded by an admiral of either four-star rank or three-star rank depending on relative size. Smaller naval forces, such as the
Royal New Zealand Navy The Royal New Zealand Navy (RNZN; mi, Te Taua Moana o Aotearoa, , Sea Warriors of New Zealand) is the maritime arm of the New Zealand Defence Force. The fleet currently consists of nine ships. The Navy had its origins in the Naval Defence Act ...
, or those navies that are effectively
coast guard A coast guard or coastguard is a maritime security organization of a particular country. The term embraces wide range of responsibilities in different countries, from being a heavily armed military force with customs and security duties to ...
s, are commanded by a
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 ...
(two-star rank),
commodore Commodore may refer to: Ranks * Commodore (rank), a naval rank ** Commodore (Royal Navy), in the United Kingdom ** Commodore (United States) ** Commodore (Canada) ** Commodore (Finland) ** Commodore (Germany) or ''Kommodore'' * Air commodore ...
(one-star rank) or even a captain. Aircraft carriers are typically commanded by a captain. Submarines and destroyers are typically commanded by a captain or commander. Some destroyers, particularly smaller destroyers such as frigates (formerly known as
destroyer escort Destroyer escort (DE) was the United States Navy mid-20th-century classification for a warship designed with the endurance necessary to escort mid-ocean convoys of merchant marine ships. Development of the destroyer escort was promoted by th ...
s) are usually commanded by officers with the rank of commander. Corvettes, the smallest class of warship, are commanded by officers with the rank of commander or
lieutenant-commander Lieutenant commander (also hyphenated lieutenant-commander and abbreviated Lt Cdr, LtCdr. or LCDR) is a commissioned officer rank in many navies. The rank is superior to a lieutenant and subordinate to a commander. The corresponding rank i ...
. Auxiliary ships, including
gunboat A gunboat is a naval watercraft designed for the express purpose of carrying one or more guns to bombard coastal targets, as opposed to those military craft designed for naval warfare, or for ferrying troops or supplies. History Pre-ste ...
s,
minesweepers A minesweeper is a small warship designed to remove or detonate naval mines. Using various mechanisms intended to counter the threat posed by naval mines, minesweepers keep waterways clear for safe shipping. History The earliest known usage of ...
,
patrol boat A patrol boat (also referred to as a patrol craft, patrol ship, or patrol vessel) is a relatively small naval vessel generally designed for coastal defence, border security, or law enforcement. There are many designs for patrol boats, and the ...
s, military riverine craft, tenders and
torpedo boat A torpedo boat is a relatively small and fast naval ship designed to carry torpedoes into battle. The first designs were steam-powered craft dedicated to ramming enemy ships with explosive spar torpedoes. Later evolutions launched variants of ...
s are usually commanded by
lieutenant A lieutenant ( , ; abbreviated Lt., Lt, LT, Lieut and similar) is a commissioned officer rank in the armed forces of many nations. The meaning of lieutenant differs in different militaries (see comparative military ranks), but it is often ...
s, sub-lieutenants or
warrant officers 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 most ...
. Usually, the smaller the vessel, the lower the rank of the ship's commander. For example,
patrol boat A patrol boat (also referred to as a patrol craft, patrol ship, or patrol vessel) is a relatively small naval vessel generally designed for coastal defence, border security, or law enforcement. There are many designs for patrol boats, and the ...
s are often commanded by
ensign An ensign is the national flag flown on a vessel to indicate nationality. The ensign is the largest flag, generally flown at the stern (rear) of the ship while in port. The naval ensign (also known as war ensign), used on warships, may be diffe ...
s, while frigates are rarely commanded by an officer below the rank of commander. Historically, navies were far more rigid in structure. Ships were collected in divisions, which in turn were collected in numbered squadrons, which comprised a numbered
fleet Fleet may refer to: Vehicles *Fishing fleet *Naval fleet *Fleet vehicles, a pool of motor vehicles *Fleet Aircraft, the aircraft manufacturing company Places Canada * Fleet, Alberta, Canada, a hamlet England * The Fleet Lagoon, at Chesil Beach ...
. Permission for a vessel to leave one unit and join another would have to be approved on paper. The modern U.S. Navy is primarily based on a number of standard groupings of vessels, including the
carrier strike group A carrier strike group (CSG) is a type of carrier battle group of the United States Navy. It is an operational formation composed of roughly 7,500 personnel, usually an aircraft carrier, at least one cruiser, a destroyer squadron of at least t ...
and the
expeditionary strike group In the United States Navy, the expeditionary strike group (ESG) is a coordinated group of surface ships, aircraft, submarines, and other naval assets. In contrast to carrier strike groups (CSGs), which emphasize air power and are led by a super ...
.US Navy
GlobalSecurity.org. Retrieved 2009-08-30. Additionally, naval organization continues aboard a single ship. The complement forms three or four departments (such as tactical and engineering), each of which has a number of divisions, followed by work centers.


Air force hierarchy

The organizational structures of air forces vary between nations: some air forces (such as the
United States Air Force The United States Air Force (USAF) is the Aerial warfare, air military branch, service branch of the United States Armed Forces, and is one of the eight uniformed services of the United States. Originally created on 1 August 1907, as a part ...
and the
Royal Air Force The Royal Air Force (RAF) is the United Kingdom's air and space force. It was formed towards the end of the First World War on 1 April 1918, becoming the first independent air force in the world, by regrouping the Royal Flying Corps (RFC) an ...
) are divided into commands, groups and squadrons; others (such as the
Soviet Air Force The Soviet Air Forces ( rus, Военно-воздушные силы, r=Voyenno-vozdushnyye sily, VVS; literally "Military Air Forces") were one of the air forces of the Soviet Union. The other was the Soviet Air Defence Forces. The Air Forces ...
) have an Army-style organizational structure. The modern
Royal Canadian Air Force The Royal Canadian Air Force (RCAF; french: Aviation royale canadienne, ARC) is the air and space force of Canada. Its role is to "provide the Canadian Forces with relevant, responsive and effective airpower". The RCAF is one of three environm ...
uses Air division as the formation between wings and the entire air command. Like the RAF, Canadian wings consist of squadrons.


Task force

A task force is a unit or formation created as a temporary grouping for a specific operational purpose. Aside from administrative hierarchical forms of organization that have evolved since the early 17th century in Europe, fighting forces have been grouped for specific operational purposes into mission-related organizations such as the German Kampfgruppe or the U.S. Combat Team (Army) and Task Force (Navy) during the Second World War, or the Soviet
Operational manoeuvre group The operational manoeuvre group (OMG) was a Soviet Army organisational manoeuvre warfare concept created during the early 1950s to replace the cavalry mechanized group which performed the deep operations on the Eastern Front during the Second W ...
during the Cold War. In the British and Commonwealth armies the battlegroup became the usual grouping of companies during the
Second World War 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 vast majority of the world's countries—including all of the great powers—forming two opposi ...
and the Cold War. Within NATO, a Joint Task Force (JTF) would be such a temporary grouping that includes elements from more than one armed service, a Combined Task Force (CTF) would be such a temporary grouping that includes elements from more than one nation, and a Combined Joint Task Force (CJTF) would be such a temporary grouping that includes elements of more than one armed service and more than one nation.


See also

*
Chalk (military) In military terminology, a chalk is a group of paratroopers or other soldiers that deploy from a single aircraft. A chalk often corresponds to a platoon-sized unit for air assault operations, or a company-minus-sized organization for airborne ope ...
*
Command and control Command and control (abbr. C2) is a "set of organizational and technical attributes and processes ... hatemploys human, physical, and information resources to solve problems and accomplish missions" to achieve the goals of an organization or en ...
*
Military administration Military administration identifies both the techniques and systems used by military departments, agencies, and armed services involved in managing the armed forces. It describes the processes that take place within military organisations outsid ...


Explanatory notes


References

{{Reflist
Organization An organization or organisation (English in the Commonwealth of Nations, Commonwealth English; American and British English spelling differences#-ise, -ize (-isation, -ization), see spelling differences), is an legal entity, entity—such as ...
ms:Organisasi tentera