9 - 10 soldiers
squad is the smallest element in the Army organizational structure.
The leader is a non-commissioned
officer (usually a sergeant of a staff sergeant). The size is
dependent on the function of the squad. Squads make up platoons.
16 - 44 soldiers
consists of two or four squads. The leader is usually a lieutenant,
while a staff sergeant or sergeant first class is second in command.
Platoons make up companies.
62 - 190 soldiers
three to five platoons form a company. A company is normally commanded
by a captain, with a first sergeant serving as the company commander's
principal non-commissioned assistant. An artillery unit of equivalent
size is called a battery. An armored or air cavalry unit of equivalent
size is called a troop.
The company is the basic tactical element of the
300 -1000 soldiers
battalion is composed of four to six companies. A battalion is
normally commanded by a lieutenant colonel, with a command sergeant
major serving as the battalion commander's principal non-commissioned
The commander has a staff who typically oversees
the battalion's mission, training, administration and logistics
A battalion is capable of independent operations
of limited duration and scope. There are combat, combat support,
and combat service support battalions.
An armored or air cavalry unit of equivalent size
is called a squadron.
Battalions/squadrons make up brigades/regiments.
- 5,000 soldiers
brigade headquarters commands the tactical operations of two to
five combat battalions. A brigade is normally commanded by a colonel,
with a command sergeant major serving as the senior, non-commissioned
Brigades may be employed on independent or semi-independent
Armored cavalry, Ranger, and special forces units
this size are categorized as regiments or groups.
normally three brigades in a division.
10,000 - 15,000 soldiers
are numbered and assigned missions based on structure. A division,
for example, may be infantry, airborne, air assault, mechanized
infantry or armored.
Divisions perform major tactical operations for
a corps and can conduct sustained battles and engagements. A division
is normally commanded by a major general.
Two or more divisions constitute a corps.
20,000 - 45,000 soldiers
corps is the deployable level of command required to synchronize
and sustain combat operations.
Corps staff elements perform analyses of national
intelligence asset information.
The corps provides a framework for multi-national
operations. The corps is commanded by a lieutenant general.
The corps provides command, control and logistical
support of two to five combat divisions.
is the primary command and control headquarters for the conduct
of battle within a theater of operations.
From the Department of Defense and the Federation of American