Platoon

[Sonia]

Formerly, a body of men who fired together; also, a small
square body of soldiers to strengthen the angles of a hollow square.

[Britney]

A unit of 30-40 soldiers, usually commanded by a lieutenant asisted by an NCO. A platoon is formed by at least two sections or squads (usually 3 or 4) and is smaller than a company. Typically, there are 3-4 platoons in a company. Most platoons are infantry platoons; some carry other designations such as mortar or heavy weapons platoons. A platoon is the smallest military unit led by a commissioned officer
Also a very kick ass movie from Oliver Stone that won Best Picture for 1986.

[Little_Girl]

when you got so many people in your squad its so big its became a whole army.

[Renato]

A subdivision of a company of soldiers, usually forming a tactical unit that is commanded by a subaltern or lieutenant and divided into three sections.