US Army Organization

Number of Soldiers

 

COMBAT

FORMATIONS

ADMINISTRATIVE

FORMATIONS

X X X X X X

Theater

Command

X X X X X

Army Group

X X X X

Army

40,000 400,000

Branch

X X X

Corps

20,000 80,000

X X

Division

10,000 16,000

Regiment

X

Brigade

3,000 5,000

I I I

Group

 

Regiment

I I

Battalion

500-900

Squadron

 

I

Company

90-200

Battery

Troop

 

Platoon / Detachment

20-40

 

Section

 

Squad

8

 

Team / Crew

 

Installation

 

 

 

Source:

Federation of American Scientists

1717 K St., NW, Suite 209

Washington, DC 20036

http://fas.org/man/dod-101/army/unit/