Infantry Platoons

A platoon is a military unit typically composed of two to four squads and containing 26 to 50 soldiers or marines. Platoons are organized into a company, which typically consists of three, four or five platoons. A platoon is typically the smallest military unit led by a commissioned officer—the platoon leader or platoon commander, usually a lieutenant. He is usually assisted by a senior non-commissioned officer—the platoon sergeant.

Most platoons in the United Stars Marine Corps are Infantry Platoons, Infantry Platoons(R) (reinforced) or  Main Battle Suit (MBS) Platoons.

The Infantry Platoon consists of
 * Second Lieutenant (O-1) and a Staff Sergeant (E-6).
 * Five Squads of thirteen Marines each
 * Each Squad is lead by a Sergeant (E-5) and divided into three fireteams of four Marines each.