Standard NATO symbol for a friendly infantry battalion.
Example of typical modern US brigade formation
Organization chart of the Royal Danish Army, April 1940
Remains of a battery of English cannon at Youghal, County Cork
Platoon of marines from the United States Marine Corps.
Symbol of the Austrian 14th Armoured Battalion in NATO military graphic symbols
A U.S. infantry brigade of around 3,200 personnel, formed into eight battalion-sized groups
A mixed aircraft and ship formation of military vehicles during an exercise with USN and JASDF vehicles.
A coast battery in Crawfordsburn, County Down, Northern Ireland
Platoon ("Zug" in German) of the German Bundeswehr
Australian 11th (Western Australia) Battalion, 3rd Infantry Brigade, Australian Imperial Force, posing on the Great Pyramid of Giza on 10 January 1915
French Napoleonic artillery battery. Photo taken during the 200th anniversary reenactment of the battle of Austerlitz which took place in 1805.
Organization of Soviet Motor Rifle Battalion late 1980s
60-pounder battery at Arras, 1917
1980s Soviet tank battalion and company
64-pounder rifled muzzle-loader (RML) gun on Moncrieff disappearing mount, at Scaur Hill Fort, a fixed battery of coastal artillery in Bermuda
1980s Soviet 122mm artillery battalion
Barbette of the
Cut-away illustration of a triple 16"/50 caliber Mark 7 gun turret. Three of these formed the main battery of s.
I Battery, 2nd Battalion 11th Marines in Iraq, 2003
A joint Iraqi, French, and U.S. artillery battery in al-Qa'im, Iraq, 2 December 2018

A battalion is a military unit, typically consisting of 300 to 1,000 soldiers commanded by a lieutenant colonel, and subdivided into a number of companies (usually each commanded by a major or a captain).

- Battalion

A brigade is a major tactical military formation that typically comprises three to six battalions plus supporting elements.

- Brigade

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 facilitate better battlefield communication and command and control, as well as to provide dispersion for its constituent gunnery crews and their systems.

- Artillery battery

A platoon is a military unit typically composed of two or more squads, sections, or patrols.

- Platoon

A unit consisting of several platoons is called a company or a battery.

- Platoon

The battalion is usually part of a regiment, group, or brigade depending on the branch of service.

- Battalion

Administratively batteries were usually grouped in battalions, regiments or squadrons and these developed into tactical organisations.

- Artillery battery

These were further grouped into regiments, simply "group" or brigades, that may be wholly composed of artillery units or combined arms in composition.

- Artillery battery

Example of formations include: divisions, brigades, battalions, wings, etc. Formation may also refer to tactical formation, the physical arrangement or disposition of troops and weapons.

- Military organization

In Commonwealth of Nations practice, formation is not used for smaller organizations like battalions which are instead called "units", and their constituent platoons or companies are referred to as sub-units.

- Military organization

In turn each rifle company consists three platoons.

- Battalion

Battalions and brigades were not affected by that system.

- Platoon

This was because, unlike infantry battalions and cavalry regiments, which were organic, artillery units consisted of individually numbered batteries that were "brigaded" together.

- Brigade

A standard U.S. Marine infantry battalion is typically supported by an artillery battery and a platoon each of tanks, amphibious assault vehicles, light armored reconnaissance vehicles, reconnaissance Marines, and combat engineers.

- Battalion

500 related topics

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Company (military unit)

Company B of the 113th Infantry, part of the American Expeditionary Force, France, 1919.
1980s Soviet Motorised Company (BTR)
Company B, 3rd Battalion, of the 75th Ranger Regiment in Somalia, 1993.
Stryker BCT Rifle Company, 2010.

A company is a military unit, typically consisting of 80–250 soldiers and usually commanded by a major or a captain.

Most companies are formed of three to seven platoons, although the exact number may vary by country, unit type, and structure.

Usually several companies are grouped as a battalion or regiment, the latter of which is sometimes formed by several battalions.

Tactically, the infantry companies were organized into battalions and grouped with cavalry troops and artillery batteries to form brigades.

The corresponding unit of artillery is always called a battery.

Regiment

Standard NATO symbol for a regiment of several battalions, indicated by the III. The shape, colour and pattern indicate friendly infantry.
The Royal Regiment of Fusiliers on parade in England
Regimental badge of the Scots Guards.
Personnel of the 154th Preobrazhensky Independent Commandant's Regiment during an exhibition drill.
The Puerto Rican 65th Infantry Regiment's bayonet charge against a Chinese division during the Korean War.

A regiment is a military unit.

Lesser barons of knightly rank could be expected to muster or hire a company or battalion from their manorial estate.

Land forces regiments are subdivided into companies (рота) (or batteries in the artillery) and platoons (взвод).

When combined with other regiments during wartime, for active field operations, regiments were further formed into brigades and divisions.

Troop

Military sub-subunit, originally a small formation of cavalry, subordinate to a squadron.

K Troop, 9th U.S. Cavalry
12th Royal Lancers on manoeuvres

In many armies a troop is the equivalent element to the infantry section or platoon.

Exceptions are the US Cavalry and the King's Troop Royal Horse Artillery where a troop is a subunit comparable to an infantry company or artillery battery.

Headquarters and headquarters company (United States)

US Army HHC logo

In United States Army units, a Headquarters and Headquarters Company (HHC) is a company-sized military unit, found at the battalion level and higher.

While a regular line company is formed of three or four platoons, an HHC is made up of the headquarters staff and headquarters support personnel of a battalion, brigade, division, or higher level unit.

In keeping with the army's long-standing practice of referring to company-sized artillery units as "batteries" and company-sized cavalry units as "troops," the headquarters company element of an artillery battalion or higher is referred to as a headquarters and headquarters battery, or HHB, and the headquarters company element of a cavalry squadron or higher is referred to as a headquarters and headquarters troop, or HHT.

Military rank

Armed forces, police, intelligence agencies or other institutions organized along military lines.

A poster showing the rank insignia of the officers of several armed forces at the time of the Second World War.

Below him was the tagmatarches, a commanding officer of a tagma (near to the modern battalion).

When he was not assisting the captain, the lieutenant commanded a unit called a platoon, particularly a more specialized platoon.

Brigades headed by brigadier generals were the units invented as a tactical unit by the Swedish king Gustavus Adolphus II ("Gustav II Adolf", who was killed at the battle of Lützen 1632).

Officers who typically command units or formations that are expected to operate independently for extended periods of time (i.e., brigades and larger, or flotillas or squadrons of ships), are referred to variously as general officers (in armies, marines, and some air forces), flag officers (in navies and coast guards), or air officers (in some Commonwealth air forces).

In English speaking countries, a company (or troop in the cavalry, and battery in the artillery) is usually designated by a letter (e.g., "A Company").

United States Army

Land service branch of the United States Armed Forces.

The storming of Redoubt No. 10 in the Siege of Yorktown during the American Revolutionary War prompted Great Britain's government to begin negotiations, resulting in the Treaty of Paris and Great Britain's recognition of the United States as an independent state.
General Andrew Jackson standing on the parapet of his makeshift defenses as his troops repulse attacking Highlanders during the defense of New Orleans, the final major and most one-sided battle of the War of 1812
The Battle of Gettysburg, the turning point of the American Civil War
Army soldiers in 1890
U.S. Army troops assaulting a German bunker in France, c. 1918
U.S. soldiers hunting for Japanese infiltrators during the Bougainville Campaign
U.S. Army soldiers observing an atomic bomb test of Operation Buster-Jangle at the Nevada Test Site during the Korean War
US tanks and Soviet tanks at Checkpoint Charlie, 1961
A U.S. Army infantry patrol moving up to assault the last North Vietnamese Army position at Dak To, South Vietnam during Operation Hawthorne
U.S. Army soldiers preparing to take La Comandancia in the El Chorrillo neighborhood of Panama City during Operation Just Cause
M1 Abrams tanks moving out before the Battle of Al Busayyah during the Gulf War
Iraqi tanks destroyed by Task Force 1-41 Infantry during the Gulf War, February 1991
U.S. Army Rangers taking part in a raid during an operation in Nahr-e Saraj, Afghanistan
U.S. Army soldiers with the 2nd Battalion, 327th Infantry Regiment, 101st Airborne Division returning fire during a firefight with Taliban forces in Barawala Kalay Valley in Kunar province, Afghanistan, March 2011
Organization of the United States Army within the Department of Defense
U.S. Army organization chart
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U.S. Army soldiers of the 1st Battalion, 175th Infantry Regiment, Maryland Army National Guard conducting an urban cordon and search exercise as part of the army readiness and training evaluation program in the mock city of Balad at Fort Dix, New Jersey
U.S. soldiers from the 6th Infantry Regiment taking up positions on a street corner during a foot patrol in Ramadi, Iraq
The 1st Cavalry Division's combat aviation brigade performing a mock charge with the horse detachment
U.S. Army Special Forces soldiers from the 3rd Special Forces Group patrolling a field in the Gulistan district of Farah, Afghanistan
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U.S. Army Rangers practicing fast roping techniques from an MH-47 during an exercise at Fort Bragg
A trainer with Company A, 1st Battalion 502nd Infantry Regiment, Task Force Strike, 101st Airborne Division assisting Iraqi army ranger students during a room clearing drill at Camp Taji, Iraq on 18 July 2016
U.S. Army soldiers familiarizing with the latest INSAS 1B1 during exercise Yudh Abhyas 2015
A Lockheed Martin Terminal High Altitude Area Defense (THAAD) system used for ballistic missile protection
A U.S. soldier on patrol in Iraq with the support of a Humvee vehicle
3rd Infantry Division soldiers manning an M1A1 Abrams in Iraq
The 2020 Army Greens uniform
An element of the 18th Infantry Regiment, wearing ASUs, representing the United States at the 2010 Victory Day commemoration in Moscow
The Ranger Honor Platoon marching in their tan berets and former service uniform

For a description of U.S. Army tactical organizational structure, see: a U.S. context and also a global context.

Squadron (army)

Polish squadron in 1830–31
Badge of the Assault Squadron 4 of the Armoured Battalion. It is used on vehicles, uniforms and barracks.

A squadron was historically a cavalry subunit, a company or battalion-sized military formation.

In the modern United States Army, a squadron is an armored cavalry, air cavalry, or other reconnaissance unit whose organizational role parallels that of a battalion and is commanded by a lieutenant colonel.

In the British Army and many other Commonwealth armies, a squadron is the Royal Armoured Corps counterpart of an infantry company or artillery battery.

Corps

Term used for several different kinds of organization.

The XVIII Airborne Corps command group returns home from Operation Iraqi Freedom in 2009

an operational formation, sometimes known as a field corps, which consists of two or more divisions, such as the Corps d'armée, later known as I Corps ("First Corps") of Napoleon I's Grande Armée);

The National Revolutionary Army (NRA) corps (軍團) was a type of military organization used by the Chinese Republic, and usually exercised command over two to three NRA divisions and often a number of independent brigades or regiments and supporting units.

However after the Battle of Chancellorsville the divisional artillery was placed under corps control, with each corps assigned a brigade of between four and six batteries commanded by the senior-most artillery officer.

Sergeant

Rank in many uniformed organizations, principally military and policing forces.

A U.S. Army sergeant from the 29th Infantry Division in 2011.
The insignia of an Australian police sergeant
OR-5 insignia
OR-5 insignia
OR-6 insignia
Sergeant insignia
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The collar and sleeve insignia of kersantti
German sergeant (Unteroffizier) shoulder board
German Navy sergeant (Maat) shoulder board
Irish Army sergeant's rank slider
IDF Rank: סמל Samal
The metal sergeant rank pin is worn on the collar of the uniform.
Sierżant shoulder strap
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RAF Sergeant's rank insignia
UK Police Patrol Sergeant Epaulette
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U.S. Marine sergeant's sleeve insignia
Old U.S. Air Force sergeant rank insignia.
U.S. Space Force sergeant rank insignia.
Army sergeant
Air Force sergeant
Sergeant insignia

In Commonwealth armies, it is a more senior rank, corresponding roughly to a platoon second-in-command.

First sergeants serve as the senior enlisted advisor (SEA) to a company or battery commander and are always addressed by their full rank title as "first sergeant".

Infantry master gunnery sergeants serve as the operations chief in the headquarters of an infantry battalion or higher level organization (viz., Marine Expeditionary Unit, regiment, Marine Expeditionary Brigade, division, Marine Expeditionary Force) and follow the same verbal address protocol as master sergeants but are commonly referred to as "master guns", or "master gunny".

Canadian Army

Command responsible for the operational readiness of the conventional ground forces of the Canadian Armed Forces.

Badge of the Canadian Army
Various uniforms used by the Canadian militia, c. 1898
Canadian soldiers en route to South Africa in 1899
The National Defence Headquarters in Ottawa houses the headquarters for the Canadian Armed Forces, including the Commander of the Canadian Army.
Officer cadets of the Royal Military College of Canada during the 2009 Sandhurst Competition. The school is a degree-granting institution that trains officers for the Canadian Armed Forces.
A sign for 2 Canadian Mechanized Brigade Group at the entrance to CFB Petawawa. The Mechanized Brigade Group is one of three maintained by the Regular Force.
The administration building at CFB Montreal, a Canadian Forces base used by the Canadian Army
Canadian Grenadier Guardsmen armed with C7 rifles in "arid region" CADPAT field uniforms. Behind them is an LAV III, an infantry fighting vehicle used by the Canadian Army.
An unpacked cabbage roll IMP. IMPs are issued to personnel when operating away from bases.
Members of the Royal 22e Regiment. The one undertaking public duties is wearing the regiment's full dress, while the other is wearing the Army's short-sleeved service dress.

There are presently three Mechanized Brigade Groups in the Canadian Army's Regular Force.

LFR regiments have the theoretical administrative capacity to support an entire battalion, but typically have the deployable manpower of only one or two platoons.