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Structure 䨥 basic building block of all Army
organizations is the individual soldier. A small group of
soldiers organized to maneuver and fire is called a squad. As
elements of the Army௲ganizational structure become larger
units, they contain more and more subordinate elements from
combat arms, combat-support and combat-service-support units. A
company is typically the smallest Army element to be given a
designation and affiliation with higher headquarters at
battalion and brigade level. This alphanumeric and branch
designation causes an 쥭ent䯠become a .좲>
SQUAD e to 10 soldiers.
Typically commanded by a sergeant or staff sergeant, a squad or section is the smallest element in Army structure, and its size is dependent on its function.
PLATOON ᶠto 44 soldiers.
A platoon is led by a lieutenant with an NCO as second in command, and consists of two to four squads or sections.
COMPANY 沠to 190 soldiers.
Three to five platoons form a company, which is commanded by a captain with a first sergeant as the commanderలincipal NCO assistant. An artillery unit of equivalent size is called a battery, and a comparable armored or air cavalry unit is called a troop.
BATTALION 㰰 to 1,000 soldiers.
Four to six companies make up a battalion, which is normally commanded by a lieutenant colonel with a command sergeant major as principal NCO assistant. A battalion is capable of independent operations of limited duration and scope. An armored or air cavalry unit of equivalent size is called a squadron.
BRIGADE 㬰00 to 5,000 soldiers.
A brigade headquarters commands the tactical operations of two to five organic or attached combat battalions. Normally commanded by a colonel with a command sergeant major as senior NCO, brigades are employed on independent or semi-independent operations. Armored, cavalry, ranger and Special Forces units this size are categorized as regiments or groups.
DIVISION ᰬ000 to 15,000 soldiers.
Usually consisting of three brigade-sized elements and commanded by a major general, divisions are numbered and assigned missions based on their structures. The division performs major tactical operations for the corps and can conduct sustained battles and engagements.
CORPS Ⱜ000 to 45,000 soldiers.
Two to five divisions constitute a corps, which is typically commanded by a lieutenant general. As the deployable level of command required to synchronize and sustain combat operations, the corps provides the framework for multi-national operations.
ARMY 尬000+ soldiers.
Typically commanded by a lieutenant general or higher, an army combines two or more corps. A theater army is the ranking Army component in a unified command, and it has operational and support responsibilities that are assigned by the theater commander in chief. The commander in chief and theater army commander may order formation of a field army to direct operations of assigned corps and divisions. An army group plans and directs campaigns in a theater, and is composed of two or more field armies under a designated commander. Army groups have not been employed by the Army since World War II.
(Source: DA Pam 10-1, 14 June 1994)