A battalion is a
military unit
Military organization ( AE) or military organisation ( BE) is the structuring of the armed forces of a state so as to offer such military capability as a national defense policy may require. Formal military organization tends to use hiera ...
, typically consisting of up to one thousand soldiers. A battalion is commanded by a
lieutenant colonel and subdivided into several
companies
A company, abbreviated as co., is a legal entity representing an association of legal people, whether natural, juridical or a mixture of both, with a specific objective. Company members share a common purpose and unite to achieve specifi ...
, each typically commanded by a
major
Major most commonly refers to:
* Major (rank), a military rank
* Academic major, an academic discipline to which an undergraduate student formally commits
* People named Major, including given names, surnames, nicknames
* Major and minor in musi ...
or a
captain
Captain is a title, an appellative for the commanding officer of a military unit; the supreme leader or highest rank officer of a navy ship, merchant ship, aeroplane, spacecraft, or other vessel; or the commander of a port, fire or police depa ...
. The typical battalion is built from three operational companies, one
weapons company
A weapons company, sometimes called a manoeuvre support company, is a company-sized military unit attached to an infantry battalion to support the rifle companies of the battalion. It usually possesses some combination of machine-guns, mortars, an ...
and one headquarters company. In some countries, battalions are exclusively
infantry
Infantry, or infantryman are a type of soldier who specialize in ground combat, typically fighting dismounted. Historically the term was used to describe foot soldiers, i.e. those who march and fight on foot. In modern usage, the term broadl ...
, while in others battalions are unit-level organizations. The word ''battalion'' has its origins in the Late Latin word ''battalion'', which is derived from ''battalia'', meaning "battle" or "combat." The term was used to describe a large group of soldiers ready for battle. Over time, its meaning evolved in military terminology.
The word "battalion" came into the English language in the 16th century from the
French , meaning "battle squadron" (similar to the
Italian
Italian(s) may refer to:
* Anything of, from, or related to the people of Italy over the centuries
** Italians, a Romance ethnic group related to or simply a citizen of the Italian Republic or Italian Kingdom
** Italian language, a Romance languag ...
meaning the same thing) and the
Spanish , derived from the
Vulgar Latin
Vulgar Latin, also known as Colloquial, Popular, Spoken or Vernacular Latin, is the range of non-formal Register (sociolinguistics), registers of Latin spoken from the Crisis of the Roman Republic, Late Roman Republic onward. ''Vulgar Latin'' a ...
noun ("battle") and ultimately from the
Classical Latin
Classical Latin is the form of Literary Latin recognized as a Literary language, literary standard language, standard by writers of the late Roman Republic and early Roman Empire. It formed parallel to Vulgar Latin around 75 BC out of Old Latin ...
verb ("to beat" or "to strike"). The first use of the word in English is attested in the 1580s.
Description
A battalion is composed of two or more primary mission companies, which are often of a common type (e.g., infantry, tank, or maintenance), although there are exceptions, such as
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, using infantry and armoured warfare, armour in an Urban warfare, urban environment in ...
battalions in the U.S. Army. In addition to the primary mission companies, a battalion typically includes a headquarters staff and
combat service support
The term combat service support (or CSS) is utilized by numerous military organizations throughout the world to describe entities that provide direct and indirect sustainment services to the groups that engage (or are potentially to be engaged) ...
, which may be combined into a
headquarters and service company
A headquarters and service company is a company-sized military unit, found at the battalion and regimental level in the U.S. Marine Corps. The U.S. Army equivalent unit is the headquarters and headquarters company.
In identifying a specific ...
. A battalion may contain a
combat support company. With all these components, a battalion is the smallest
military unit
Military organization ( AE) or military organisation ( BE) is the structuring of the armed forces of a state so as to offer such military capability as a national defense policy may require. Formal military organization tends to use hiera ...
capable of "limited independent operations".
The battalion must have a source of resupply to enable it to sustain operations for more than a few days. This is because a battalion's complement of ammunition, expendable weapons (e.g.,
hand grenade
A grenade is a small explosive weapon typically thrown by hand (also called hand grenade), but can also refer to a Shell (projectile), shell (explosive projectile) shot from the muzzle of a rifle (as a rifle grenade) or a grenade launcher. A mod ...
s and disposable
rocket launcher
A rocket launcher is a weapon that launches an unguided, rocket-propelled projectile.
History
The earliest rocket launchers documented in imperial China consisted of arrows modified by the attachment of a rocket motor to the shaft a few i ...
s), water, rations, fuel, lubricants, replacement parts, batteries, and medical supplies normally consists of only what the battalion's soldiers and the battalion's vehicles can carry.
The commander's staff coordinates and plans operations. A battalion's subordinate companies and their platoons are dependent upon the battalion headquarters for command, control, communications and intelligence, and the battalion's service and support structure. The battalion is usually part of a
regiment
A regiment is a military unit. Its role and size varies markedly, depending on the country, military service, service, or administrative corps, specialisation.
In Middle Ages, Medieval Europe, the term "regiment" denoted any large body of l ...
,
group
A group is a number of persons or things that are located, gathered, or classed together.
Groups of people
* Cultural group, a group whose members share the same cultural identity
* Ethnic group, a group whose members share the same ethnic iden ...
, or
brigade
A brigade is a major tactical military unit, 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 ...
, depending on the branch of service.
NATO
NATO defines a battalion as being "larger than a company, but smaller than a regiment" while "consisting of two or more company-, battery-, or troop-sized units along with a headquarters."
The standard
NATO
The North Atlantic Treaty Organization (NATO ; , OTAN), also called the North Atlantic Alliance, is an intergovernmental organization, intergovernmental Transnationalism, transnational military alliance of 32 Member states of NATO, member s ...
symbol for a battalion represented by a pair of vertical lines above a framed unit icon.
Member nations have specified the various names they will use for organisations of this size.
British Army

The term ''battalion'' is used in the
British Army Infantry
The Infantry of the British Army comprises 49 infantry battalions, from 19 regiments. Of these, 33 battalions are part of the Regular army and the remaining 16 a part of the Army Reserve. The British Army's Infantry takes on a variety of roles, ...
and some corps including the
Royal Electrical and Mechanical Engineers
The Corps of Royal Electrical and Mechanical Engineers (REME ) is the maintenance arm of the British Army that maintains the equipment that the Army uses. The corps is described as the "British Army's professional engineers".
History
Prior t ...
and
Intelligence Corps. It was formerly used in the
Royal Engineers
The Corps of Royal Engineers, usually called the Royal Engineers (RE), and commonly known as the ''Sappers'', is the engineering arm of the British Army. It provides military engineering and other technical support to the British Armed Forces ...
(before they switched to regiments), and was also used in the now defunct
Royal Army Ordnance Corps
The Royal Army Ordnance Corps (RAOC) was a corps of the British Army. At its renaming as a Royal Corps in 1918 it was both a supply and repair corps. In the supply area it had responsibility for weapons, armoured vehicles and other military equi ...
and
Royal Pioneer Corps. Other
corps
Corps (; plural ''corps'' ; from French , from the Latin "body") is a term used for several different kinds of organization. A military innovation by Napoleon I, the formation was formally introduced March 1, 1800, when Napoleon ordered Gener ...
usually use the term "regiment" instead.
An infantry battalion is numbered ordinarily within its regiment (e.g., 1st Battalion,
The Rifles
The Rifles is an infantry regiment of the British Army. Formed in 2007, it consists of four Regular battalions and three Reserve battalions. Each Regular battalion was formerly an individual battalion of one of the two large regiments of the ...
, usually referred to as 1 Rifles). It normally has a headquarters company, support company, and three rifle companies (usually, but not always, A, B and C companies). Each company is commanded by a
major
Major most commonly refers to:
* Major (rank), a military rank
* Academic major, an academic discipline to which an undergraduate student formally commits
* People named Major, including given names, surnames, nicknames
* Major and minor in musi ...
, the officer commanding (OC), with a
captain
Captain is a title, an appellative for the commanding officer of a military unit; the supreme leader or highest rank officer of a navy ship, merchant ship, aeroplane, spacecraft, or other vessel; or the commander of a port, fire or police depa ...
or senior
lieutenant
A lieutenant ( , ; abbreviated Lt., Lt, LT, Lieut and similar) is a Junior officer, junior commissioned officer rank in the armed forces of many nations, as well as fire services, emergency medical services, Security agency, security services ...
as
second-in-command
Second-in-command (2i/c or 2IC) is a title denoting that the holder of the title is the second-highest authority within a certain organisation.
Usage
In the British Army or Royal Marines, the second-in-command is the deputy commander of a unit, f ...
(2IC). The HQ company contains
signals
A signal is both the process and the result of Signal transmission, transmission of data over some transmission media, media accomplished by embedding some variation. Signals are important in multiple subject fields including signal processin ...
,
quartermaster
Quartermaster is a military term, the meaning of which depends on the country and service. In land army, armies, a quartermaster is an officer who supervises military logistics, logistics and requisitions, manages stores or barracks, and distri ...
, catering,
intelligence
Intelligence has been defined in many ways: the capacity for abstraction, logic, understanding, self-awareness, learning, emotional knowledge, reasoning, planning, creativity, critical thinking, and problem-solving. It can be described as t ...
, administration, pay, training, operations and medical elements. The support company usually contains
anti-tank
Anti-tank warfare refers to the military strategies, tactics, and weapon systems designed to counter and destroy enemy armored vehicles, particularly tanks. It originated during World War I following the first deployment of tanks in 1916, and ...
,
machine gun,
mortar,
pioneer and
reconnaissance
In military operations, military reconnaissance () or scouting is the exploration of an area by military forces to obtain information about enemy forces, the terrain, and civil activities in the area of operations. In military jargon, reconnai ...
platoons. Mechanised units usually have an attached
light aid detachment A Light Aid Detachment is an attached independent minor unit of the Royal Electrical and Mechanical Engineers, Royal Canadian Electrical and Mechanical Engineers, Royal Australian Electrical and Mechanical Engineers, or Royal New Zealand Army Log ...
(LAD) of the Royal Electrical and Mechanical Engineers (REME) to perform field repairs on vehicles and equipment. A British battalion in theatre during World War II had around 845 men; as of 2012, a British battalion had around 650 soldiers. With successive rounds of cutbacks after the war, many infantry regiments were reduced to a single battalion (others were amalgamated to form large regiments that maintained multiple battalions, e.g., the
Royal Anglian Regiment).
Important figures in a battalion headquarters include:
*
Commanding officer
The commanding officer (CO) or commander, or sometimes, if the incumbent is a general officer, commanding general (CG), is the officer in command of a military unit. The commanding officer has ultimate authority over the unit, and is usually give ...
(CO) (invariably a
lieutenant colonel)
*
Second-in-command
Second-in-command (2i/c or 2IC) is a title denoting that the holder of the title is the second-highest authority within a certain organisation.
Usage
In the British Army or Royal Marines, the second-in-command is the deputy commander of a unit, f ...
(2i/c) (major)
*
Adjutant
Adjutant is a military appointment given to an Officer (armed forces), officer who assists the commanding officer with unit administration, mostly the management of “human resources” in an army unit. The term is used in French-speaking armed ...
(captain)
*
Quartermaster
Quartermaster is a military term, the meaning of which depends on the country and service. In land army, armies, a quartermaster is an officer who supervises military logistics, logistics and requisitions, manages stores or barracks, and distri ...
(QM) (LE captain)
* Quartermaster (technical) (QM(T))
* Medical officer (MO) (
Royal Army Medical Service
The Royal Army Medical Service (RAMS) is a specialist corps in the British Army
The British Army is the principal Army, land warfare force of the United Kingdom. the British Army comprises 73,847 regular full-time personnel, 4,127 Brigad ...
captain or major)
* Administrative officer (
Adjutant General's Corps
The Adjutant General's Corps is a corps in the British Army responsible for many of its general administrative services, named for the Adjutant-General to the Forces (now the Commander Home Command). As of 2002, the AGC had a staff of 7,000 peop ...
captain or major)
*
Padre (
Royal Army Chaplains Department chaplain 4th or 3rd class)
* Operations officer (Ops) (lieutenant)
* Intelligence officer (IO) (lieutenant or captain)
* Regimental Signals officer (RSO) (
Royal Corps of Signals
The Royal Corps of Signals (often simply known as the Royal Signals – abbreviated to R SIGNALS) is one of the combat support arms of the British Army. Signals units are among the first into action, providing the battlefield communications an ...
captain)
*
Regimental sergeant major
Regimental sergeant major (RSM) is an appointment that may be held by a warrant officer (WO) in the British Army, the Royal Marines, and the armies of many other Commonwealth and former Commonwealth nations. It is also an actual rank in the Iri ...
(RSM) (
warrant officer
Warrant officer (WO) is a Military rank, 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 ...
class 1)
*
Regimental quartermaster sergeant (RQMS) (warrant officer class 2)
* Regimental quartermaster sergeant (technical) (RQMS(T)) (warrant officer class 2)
Battalions of other corps are given separate cardinal numbers within their corps (e.g., 101 Battalion REME).
Battle group
A battle group consists of an infantry battalion or
armoured regiment with sub-units detached from other military units acting under the command of the battalion commander.
Canadian Army
In the
Canadian Army
The Canadian Army () is the command (military formation), command responsible for the operational readiness of the conventional ground forces of the Canadian Armed Forces. It maintains regular forces units at bases across Canada, and is also re ...
, the battalion is the standard unit organisation for infantry and
combat service support
The term combat service support (or CSS) is utilized by numerous military organizations throughout the world to describe entities that provide direct and indirect sustainment services to the groups that engage (or are potentially to be engaged) ...
and each battalion is divided into one or more sub-units referred to as companies.
In the
Canadian Forces
The Canadian Armed Forces (CAF; , FAC) are the unified Military, military forces of Canada, including sea, land, and air commands referred to as the Royal Canadian Navy, Canadian Army and the Royal Canadian Air Force. Under the ''National Defenc ...
, most battalions are
reserve units of between 100 and 200
soldiers that include an operationally ready, field-deployable component of approximately a half-company apiece. The nine regular force infantry battalions each contain three or four rifle companies and one or two support companies. Canadian battalions are generally commanded by
lieutenant-colonels, though smaller reserve battalions may be commanded by
major
Major most commonly refers to:
* Major (rank), a military rank
* Academic major, an academic discipline to which an undergraduate student formally commits
* People named Major, including given names, surnames, nicknames
* Major and minor in musi ...
s.
Those regiments consisting of more than one battalion are:
*
The Royal Canadian Regiment
The Royal Canadian Regiment (RCR) is an infantry regiment of the Canadian Army. The regiment consists of four battalions, three in the Regular Force and one in the primary reserve. The RCR is ranked first in the order of precedence amongst Canad ...
(three
regular and one
reserve battalions)
*
Princess Patricia's Canadian Light Infantry
Princess Patricia's Canadian Light Infantry (PPCLI, generally referred to as the Patricias) is one of the three Regular Force infantry regiments of the Canadian Army of the Canadian Armed Forces. Formed in 1914, it is named for Princess Patrici ...
(three regular battalions)
*
Royal 22e Régiment (three regular and two reserve battalions)
*
The Royal Newfoundland Regiment (two reserve battalions)
Tactically, the Canadian battalion forms the core of the infantry battle group, which also includes various supporting elements such as armour,
artillery
Artillery consists of ranged weapons that launch Ammunition, munitions far beyond the range and power of infantry firearms. Early artillery development focused on the ability to breach defensive walls and fortifications during sieges, and l ...
, combat engineers and
combat service support
The term combat service support (or CSS) is utilized by numerous military organizations throughout the world to describe entities that provide direct and indirect sustainment services to the groups that engage (or are potentially to be engaged) ...
. An infantry battle group will typically be commanded by the commander of the core infantry battalion around which it is formed and can range in size from 300 to 1,500 or more soldiers, depending on the nature of the mission assigned.
Indian Army
A battalion in the
Indian Army
The Indian Army (IA) (ISO 15919, ISO: ) is the Land warfare, land-based branch and largest component of the Indian Armed Forces. The President of India is the Commander-in-Chief, Supreme Commander of the Indian Army, and its professional head ...
consists of four rifle companies. In turn, each rifle company consists three
platoons
A platoon is a Military organization, military unit typically composed of two to four squads, Section (military unit), sections, or patrols. Platoon organization varies depending on the country and the Military branch, branch, but a platoon can ...
. A battalion in the Indian Army is commanded by a
colonel
Colonel ( ; abbreviated as Col., Col, or COL) is a senior military Officer (armed forces), officer rank used in many countries. It is also used in some police forces and paramilitary organizations.
In the 17th, 18th, and 19th centuries, a colon ...
. Normally a battalion is attached to a
regiment
A regiment is a military unit. Its role and size varies markedly, depending on the country, military service, service, or administrative corps, specialisation.
In Middle Ages, Medieval Europe, the term "regiment" denoted any large body of l ...
of infantry, which is organised, as a general rule, of a number of battalions and the regimental centre battalion.
Indian Armed Police Forces
Central Armed Police Forces
The Central Armed Police Forces (CAPF) consist of seven armed police organizations under the Ministry of Home Affairs (MHA), Government of India, tasked with maintaining internal security, law and order, counterinsurgency, and protecting borde ...
(CAPFs) and various
State Armed Police Forces (SAPFs) are organised into battalions. Each battalion is commanded by officers of the rank of
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 ...
(equivalent to
Lt. Colonel or
Colonel
Colonel ( ; abbreviated as Col., Col, or COL) is a senior military Officer (armed forces), officer rank used in many countries. It is also used in some police forces and paramilitary organizations.
In the 17th, 18th, and 19th centuries, a colon ...
in the Army). Each battalion is divided into companies and platoons. Each CAPF battalion has ~1000 personnel and consists of 4–6 companies.
Each state armed police battalion is composed of companies (typically 4–6), each further divided into platoons. These armed police battalions focus on
internal security
Internal security is the act of keeping peace within the borders of a sovereign state or other Self-governance, self-governing territories, generally by upholding the national law and defending against internal security threats. This task and rol ...
,
riot control
Riot control is a form of public order policing used by law enforcement, military, paramilitary or security forces to social control, control, disperse, and arrest people who are involved in a riot, unlawful Demonstration (people), demonstration ...
,
counter-insurgency
Counterinsurgency (COIN, or NATO spelling counter-insurgency) 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 ac ...
, and
law enforcement support.
Royal Netherlands Army
In the
Royal Netherlands Army
The Royal Netherlands Army (, KL) is the Ground warfare, land branch of the Netherlands Armed Forces. Though the Royal Netherlands Army was raised on 9 January 1814, its origins date back to 1572, when the was raised making the Dutch standing a ...
, a mechanised infantry battalion usually consists of one command- and medical company, three mechanised infantry companies and one support company, which has three platoons with heavy mortars and three platoons with anti-tank missiles (
TOW). With the
Dutch artillery units, the equivalent of a battalion is called an (which translates to "section").
Combat companies consist of (usually mechanised) infantry,
combat engineers
A combat engineer (also called pioneer or sapper) is a type of soldier who performs military engineering tasks in support of land forces combat operations. Combat engineers perform a variety of military engineering, Tunnel warfare, tunnel and l ...
, or
tank
A tank is an armoured fighting vehicle intended as a primary offensive weapon in front-line ground combat. Tank designs are a balance of heavy firepower, strong armour, and battlefield mobility provided by tracks and a powerful engine; ...
s. In the latter case, the unit is called an , which translates roughly to "squadron". There are also support battalions in the Dutch Army, which specialise on a specific task: for example, supplies and transport or communications.
The Netherlands have four battalions that are permanently reserved for the
United Nations
The United Nations (UN) is the Earth, global intergovernmental organization established by the signing of the Charter of the United Nations, UN Charter on 26 June 1945 with the stated purpose of maintaining international peace and internationa ...
, for the purpose of
peacekeeping
Peacekeeping comprises activities, especially military ones, intended to create conditions that favor lasting peace. Research generally finds that peacekeeping reduces civilian and battlefield deaths, as well as reduces the risk of renewed w ...
duties.
An infantry battalion, logistical battalion, combat battalion and the
Netherlands Marine Corps
The Royal Netherlands Marine Corps () is the elite naval infantry corps of the Royal Netherlands Navy, one of the four Netherlands Armed Forces, Armed Forces of the Kingdom of the Netherlands. The marines trace their origins to the establishme ...
all have a battalion structure. Each battalion usually consists of the following:
* Battalion command
** Commander
** Second in command
* General service
** Personnel section
** Intelligence section
** Operations section
** Materiel section
** Communication section
* Command company
** Command group
** Administration group
** Medical group
** Communication group
** Supply platoon
* Three infantry companies
* Support company
** Command group
** Recon platoon
** Mortar platoon
** Anti-tank platoon
Soviet Armed Forces
Motorised rifle battalion

In the
Soviet Armed Forces
The Armed Forces of the Union of Soviet Socialist Republics, also known as the Armed Forces of the Soviet Union, the Red Army (1918–1946) and the Soviet Army (1946–1991), were the armed forces of the Russian Soviet Federative Socialist Republi ...
, a motorised rifle battalion could be mounted in either
BTR BTR may refer to:
Arts and entertainment Music
* B.T.R. (band), a Bulgarian rock band
* Bad Trip Records, an American record label
* Beyond Therapy Records, an American industrial music record label
* Big Tent Revival, a Christian rock band
* Big T ...
armoured 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 ...
s or
BMP infantry fighting vehicle
An infantry fighting vehicle (IFV), also known as a mechanized infantry combat vehicle (MICV), is a type of armoured fighting vehicle and armoured personnel carrier used to carry infantry into battle and provide direct fire, direct-fire suppo ...
s, with the former being more numerous into the late 1980s. Both consisted of a battalion headquarters of 12 personnel and three motorised rifle companies of 110 personnel each, along with a number of combat support units: a mortar battery consisting of eight 120 mm
120-PM-43 mortars or automatic 82 mm
2B9 Vasileks, an air defence platoon with nine
MANPAD
Man-portable air-defense systems (MANPADS or MPADS) are portable shoulder-launched surface-to-air missiles. They are guided weapons and are a threat to low-flying aircraft, especially helicopters and also used against low-flying cruise missi ...
s, either the
SA-7 Grail,
SA-14 Gremlin or
SA-16 Gimlet and an automatic grenade launcher platoon with six 30 mm
AGS-17 launchers. The BTR battalion also featured an anti-tank platoon with four
AT-3 Sagger or
AT-4 Spigot
The 9K111 ''Fagot'' (; "bassoon") is a second-generation tube-launched semi-automatic command to line of sight (SACLOS) wire-guided anti-tank missile system of the Soviet Union for use from ground or vehicle mounts. The 9K111 Fagot missile system ...
launchers and two 73 mm
SPG-9 recoilless gun
A Recoilless rifle ( rifled), recoilless launcher ( smoothbore), or simply recoilless gun, sometimes abbreviated to "rr" or "RCL" (for ReCoilLess) is a type of lightweight artillery system or man-portable launcher that is designed to eject some ...
s; BTR units on high-readiness status sometimes had six missile launchers and three recoilless guns. Both featured the same support units as well, with a signal platoon, supply platoon, repair workshop and medical aid station. The addition of the antitank platoon meant that a BTR battalion at full strength was 525 personnel and 60 BTRs, including three command variants, while a BMP battalion consisted of 497 personnel and 45 BMPs, including three command variants.
Tank battalion

Prior to the late 1980s, Soviet tank battalions consisted of three tank companies of 13
T-64,
T-72
The T-72 is a family of Soviet Union, Soviet main battle tanks that entered production in 1973. The T-72 was a development based on the T-64 using thought and design of the previous Object 167M. About 25,000 T-72 tanks have been built, and refu ...
or
T-80
The T-80 is a main battle tank (MBT) that was designed and manufactured in the former Soviet Union and manufactured in Russia. The T-80 is based on the T-64, while incorporating features from the later T-72 and changing the engine to a gas turbi ...
tanks each, along with a battalion headquarters mounted in a command tank and a headquarters and service platoon, for a total of 165 personnel and 40 tanks; battalions using the older
T-54,
T-55 or
T-62
The T-62 is a Soviet main battle tank that was first introduced in 1961. As a further development of the T-55 series, the T-62 retained many similar design elements of its predecessor including low profile and thick turret armour.
In contra ...
s tanks had 31 or 40 additional enlisted personnel. However, forces in Eastern Europe began to standardise to a smaller formation with 135 personnel and 31 tanks total, with each tank company consisting of 10 tanks total.
Artillery battalion

A Soviet artillery battalion in the late 1980s consisted of a battalion headquarters, a headquarters platoon, a maintenance and supply platoon and three firing batteries, each with six artillery pieces, whether the self-propelled
2S1 Gvozdika
The 2S1 ''Gvozdika'' (, "Dianthus caryophyllus, Carnation") is a Soviet Self-propelled artillery, self-propelled howitzer introduced in 1972 and is in service in Russia and other countries . It is based on the MT-LBu multi-purpose chassis, mount ...
s or the towed
D-30 howitzer
The howitzer () is an artillery weapon that falls between a cannon (or field gun) and a mortar. It is capable of both low angle fire like a field gun and high angle fire like a mortar, given the distinction between low and high angle fire break ...
s, and numbering 260 personnel or 240 personnel respectively. Rocket launcher artillery battalions consisted of a headquarters and headquarters platoon, a service battery and three firing batteries equipped with
BM-21 Grad
The BM-21 "Grad" () is a self-propelled 122 mm multiple rocket launcher designed in the Soviet Union. The system and the M-21OF rocket were first developed in the early 1960s, and saw their first combat use in March 1969 during the Sino-S ...
s for a total of 255 personnel.
Sweden
A Swedish battalion during the mid-17th century up to the mid-18th century was the smallest tactical unit in combat. The 600-man unit was formed, temporarily, at the inception of a battle by joining four-foot companies from a foot regiment of eight companies. The commander of the regiment, an (
colonel
Colonel ( ; abbreviated as Col., Col, or COL) is a senior military Officer (armed forces), officer rank used in many countries. It is also used in some police forces and paramilitary organizations.
In the 17th, 18th, and 19th centuries, a colon ...
), led the first battalion and his deputy, an (
lieutenant colonel), the second battalion.
Battalion commanders and all other officers marched in front of the formation.
Non-commissioned officers
A non-commissioned officer (NCO) is an enlisted rank, enlisted leader, petty officer, or in some cases warrant officer, who does not hold a Commission (document), commission. Non-commissioned officers usually earn their position of authority b ...
(''underofficers'') marched beside and behind to prevent
desertion
Desertion is the abandonment of a military duty or post without permission (a pass, liberty or leave) and is done with the intention of not returning. This contrasts with unauthorized absence (UA) or absence without leave (AWOL ), which ...
, and to replace officers who were killed. In addition to his principal duties, senior officers, such as , the and , also commanded a company. So that the could focus on the operations of his regiment and first battalion, command of his company was delegated to a . During battle, each officer, except the , was in charge of a portion of his company. ''Underofficer'' (NCO) ranks consisted of , , , and .
Swiss Army
With the major reform of its armed forces in 2004, the
Swiss Army
The Swiss Armed Forces (; ; ; ; ) are the military and security force of Switzerland, consisting of land and air service branches. Under the country's militia system, regular soldiers constitute a small part of the military and the rest are ...
abandoned the old regimental system and adopted a combat team approach centred on battalions as the building blocks of mission-oriented task forces. Battalion sizes vary between branches.
United States Armed Forces
United States Army
In the
United States Army
The United States Army (USA) is the primary Land warfare, land service branch of the United States Department of Defense. It is designated as the Army of the United States in the United States Constitution.Article II, section 2, clause 1 of th ...
, a battalion is a unit composed of a headquarters and two to six batteries, companies, or troops.
They are normally identified by ordinal numbers (1st Battalion, 2nd Squadron, etc.) and normally have subordinate units that are identified by single letters (Battery A, Company A, Troop A, etc.).
Battalions are tactical and administrative organizations with a limited capability to plan and conduct independent operations and are normally organic components of brigades, groups, or regiments.
A U.S. Army battalion includes the battalion commander (
lieutenant colonel),
executive officer
An executive officer is a person who is principally responsible for leading all or part of an organization, although the exact nature of the role varies depending on the organization.
In many militaries and police forces, an executive officer ...
(
major
Major most commonly refers to:
* Major (rank), a military rank
* Academic major, an academic discipline to which an undergraduate student formally commits
* People named Major, including given names, surnames, nicknames
* Major and minor in musi ...
),
command sergeant major (CSM), headquarters staff and usually three to five companies, with a total of 300 to 1,000
(but typically 500 to 600) soldiers.
During the
American Civil War
The American Civil War (April 12, 1861May 26, 1865; also known by Names of the American Civil War, other names) was a civil war in the United States between the Union (American Civil War), Union ("the North") and the Confederate States of A ...
, an infantry or cavalry battalion was an ad hoc grouping of companies from the parent regiment (which had ten companies, A through K, minus J as described below), except for certain regular infantry regiments, which were formally organized into three battalions of six companies each (numbered 1–6 per battalion vice sequential letter designations). After 1882, cavalry battalions were renamed squadrons and cavalry companies were renamed troops. Artillery battalions typically comprised four or more batteries, although this number fluctuated considerably.
During
World War II
World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...
, most infantry regiments consisted of three battalions (1st, 2nd and 3rd) with each battalion consisting of three rifle companies and a heavy weapons company.
That is, rifle companies A, B, C along with heavy weapons Company D were part of the 1st battalion, rifle companies E, F, G and heavy weapons Company H constituted the 2nd battalion, and rifle companies I, K, L and heavy weapons Company M were in the 3rd. There was no J Company: the letter ''J'' was traditionally not used because in 18th- and 19th-century old-style type, the capital letters ''I'' and ''J'' looked alike and were therefore easily confused with one another. It was common for a battalion to become temporarily attached to a different regiment. For example, during the confusion and high casualty rates of both the
Normandy Landings
The Normandy landings were the landing operations and associated airborne operations on 6 June 1944 of the Allies of World War II, Allied invasion of Normandy in Operation Overlord during the Second World War. Codenamed Operation Neptune and ...
and the
Battle of the Bulge
The Battle of the Bulge, also known as the Ardennes Offensive or Unternehmen Die Wacht am Rhein, Wacht am Rhein, was the last major German Offensive (military), offensive Military campaign, campaign on the Western Front (World War II), Western ...
, in order to bolster the strength of a depleted infantry regiment, companies and even battalions were moved around as necessary.
The U.S. Army also created
independent tank battalions to attach to infantry divisions during World War II in order to give them fire support.
From the 1960s through the early 1980s, a typical maneuver (infantry or tank) battalion had five companies:
headquarters and headquarters company
In United States Army units, a headquarters and headquarters company (HHC) is a company-sized military unit, found at the battalion level and higher. Considered one unit, a Headquarters and Headquarters Company is essentially two elements within ...
(HHC) and A, B and C Companies, plus a combat support company (CSC), with a scout platoon, 107 mm (4.2 inch) heavy mortar platoon, along with other elements that varied between organisations. These included heavy anti-tank
TOW missile platoons,
ground surveillance radar sections and
man-portable air-defense system
Man-portable air-defense systems (MANPADS or MPADS) are portable Shoulder-launched missile, shoulder-launched surface-to-air missiles. They are guided missile, guided weapons and are a threat to low-flying aircraft, especially helicopters and ...
sections. Beginning in the early 1980s, some elements of the combat support companies (the mortar and scout platoons) were merged into the headquarters company with the staff and support elements, others were moved to their parent type organisation (ground surveillance radar and air defence), and in infantry battalions the heavy anti-tank missile platoon was organized as a separate company (E Company). In the late 1980s, there was a fourth "line" company added (D Company) in most infantry and tank battalions.
In this older structure, U.S. Army mechanised infantry battalions and tank battalions, for tactical purposes, task-organised companies to each other, forming a battalion-sized
task force
A task force (TF) is a unit or formation established to work on a single defined task or activity. Originally introduced by the United States Navy, the term has now caught on for general usage and is a standard part of NATO terminology. Many ...
(TF).
Starting in 2005–2006, the U.S. Army's mechanised and tank battalions were reorganised into
combined arms battalions (CABs). Tank battalions and mechanised infantry battalions no longer exist. These new combined arms battalions are modular units, each consisting of a headquarters company, two mechanized infantry companies, two tank companies and a forward support company attached from the battalion's parent brigade support battalion. This new structure eliminated the need to task-organize companies between battalions; each combined arms battalion was organically composed of the requisite companies. At a higher level, each
armored brigade (formerly designated 'heavy brigade') is now composed of three CABs (versus the two CABs of a former heavy brigade), one reconnaissance squadron, one artillery battalion, one brigade engineer battalion (BEB) and one brigade support battalion (BSB).
United States Marine Corps
A
United States Marine Corps
The United States Marine Corps (USMC), also referred to as the United States Marines or simply the Marines, is the maritime land force service branch of the United States Department of Defense. It is responsible for conducting expeditionar ...
battalion includes the battalion headquarters, consisting of the commanding officer (usually a lieutenant colonel, sometimes a colonel), an
executive officer
An executive officer is a person who is principally responsible for leading all or part of an organization, although the exact nature of the role varies depending on the organization.
In many militaries and police forces, an executive officer ...
(the second-in-command, usually a major), the
sergeant major
Sergeant major is a senior Non-commissioned officer, non-commissioned Military rank, rank or appointment in many militaries around the world.
History
In 16th century Spain, the ("sergeant major") was a general officer. He commanded an army's ...
and the executive staff (S-1 through S-4 and S-6). The battalion headquarters is supported by a
headquarters and service company
A headquarters and service company is a company-sized military unit, found at the battalion and regimental level in the U.S. Marine Corps. The U.S. Army equivalent unit is the headquarters and headquarters company.
In identifying a specific ...
(battery). A battalion usually contains two to five organic companies (batteries in the artillery), with a total of 500 to 1,200 Marines in the battalion. A regiment consists of a regimental headquarters, a headquarters company (or battery) and two to five organic battalions (Marine infantry regiments – three battalions of infantry; Marine artillery regiments – three to five battalions of artillery; Marine combat logistics regiments – one to three combat logistics battalions). In the U.S. Marine Corps, the brigade designation is used only in "
Marine Expeditionary Brigade" (MEB). An MEB is one of the standard
Marine Air-Ground Task Force
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 current power
* Marine debris
* Marine energy
* Marine habitats
* ...
s (MAGTF), is commanded by a
brigadier general or
major general, and consists of command element, a
ground combat element
In the United States Marine Corps, the ground combat element (GCE) is the land force of a Marine Air-Ground Task Force (MAGTF). It provides power projection and force for the MAGTF.
Role within the MAGTF
The ground combat element (GCE), composed p ...
(usually one reinforced Marine infantry regiment), an
aviation combat element
In the United States Marine Corps, the aviation combat element or air combat element (ACE) is the aviation component of the Marine Air-Ground Task Force (MAGTF). The ACE is task organized to perform the six functions of Marine Corps aviation in ...
(a reinforced Marine aircraft group including rotary wing, fixed wing and tiltrotor aircraft) and a combat logistics element (a Marine combat logistics regiment, which includes naval construction forces
eabeesand naval medical elements).
In the U.S. Marine Corps, an infantry or "rifle" battalion typically consists of a headquarters and service company, three rifle or "line" companies (designated alphabetically A through M depending upon which battalion of the parent regiment to which they are attached) and a weapons company. Weapons companies do not receive a letter designation. Marine infantry regiments use battalion and company designations as described above under World War II, with company letters D, H and M not normally used but rather held in reserve for use in augmenting a fourth rifle company into each battalion as needed.
United States Marine Corps infantry battalions are task organised into Battalion Landing Teams (BLTs) as the ground combat element (GCE) of a
Marine Expeditionary Unit
A Marine Expeditionary Unit (MEU, pronounced as one syllable "" IPA: ) is the smallest Marine air-ground task force, air-ground task force (MAGTF) in the United States Fleet Marine Force.[artillery battery
In military organizations, an artillery battery is a unit or multiple systems of artillery, mortar systems, rocket artillery, multiple rocket launchers, surface-to-surface missiles, ballistic missiles, cruise missiles, etc., so grouped to f ...]
and a platoon each of tanks, amphibious assault vehicles, light armoured reconnaissance vehicles, reconnaissance Marines and combat engineers. The battalion structure is designed to readily expand to include a fourth rifle company, if required, as described above under battalion organisation. Often
Air Naval Gunfire Liaison Company (ANGLICO) officers are assigned to the battalion, to coordinate
naval gunfire support
Naval gunfire support (NGFS), also known as naval surface fire support (NSFS), or shore bombardment, is the use of naval artillery to provide fire support for amphibious assault and other troops operating within their range. NGFS is one of seve ...
.
United States Navy
The
United States Navy
The United States Navy (USN) is the naval warfare, maritime military branch, service branch of the United States Department of Defense. It is the world's most powerful navy with the largest Displacement (ship), displacement, at 4.5 millio ...
has
construction battalions and
navy cargo handling battalions. They are structured roughly analogous to an Army or Marine Corps battalion with staff and commanding officers of similar grade and experience.
Myanmar
In Myanmar (Army, People's Defence Force and various EAOs), battalions (or regiments), called Tat Yinn (တပ်ရင်း), are the main maneuver units.
As for structure, infantry battalions were structured with 27 officers and 750 other ranks back in 1966 under a structure organisation named of . This was revised in 1988 to 814 men and then revised again in 2001 as 31 officers and 826 other ranks under a structure organisation named .
Even though the authorised strength of the structure changed, the core of the battalion structure remains roughly the same with battalion/regimental HQ housing command elements (OC, 2IC, adjutant, quartermaster, RSM, RQMS, R.P sergeant etc.), an HQ company (containing support platoons such as engineer, signal, medical etc.) and 4 rifle companies (for example: No. (1) Rifle Company, No. (2) Rifle Company, No. (3) Rifle Company and No. (4) Rifle Company). The 4 rifle companies and the HQ company are for combat troops whereas the battalion/regimental HQ is for command elements.
According to some observers, the average manpower of the battalions has substantially declined: from 670+ in 1988, 350+ in 1998, to 250+ in 2008.
A leaked document reported in the international media revealed that in late 2006, the Tatmadaw had 284 battalions with fewer than 200 personnel, and 220 battalions with between 200 and 300 personnel.
, most battalions/regiments of the army are reported to have less than 150 men. Within these battalions, only around 80 men are fit for actual combat. Due to such manpower shortages, the army has been reportedly drawing out 30,000 men from combat support service battalions as of late 2023 (signal, supply and transport battalions for example).
See also
*
Battalion (Sweden)
*
Indonesian Army infantry battalions
*
March battalion
*
Military organization
Military organization (American English , AE) or military organisation (British English , BE) is the structuring of the armed forces of a State (polity), state so as to offer such military capability as a military policy, national defense pol ...
References
External links
French Infantry of the Napoleonic Wars 1996, by Major General Richard A. Chilcoat, US Army War College, Carlisle Barracks, Pennsylvania
{{Military units
*
Military units and formations by size