A CORPS is a large body of troops, typically consisting of two or more divisions and various supporting units. A BRIGADE is a military formation composed of three to six battalions plus supporting elements. A UNIT is a small body of troops, typically consisting of a few dozen to a few hundred soldiers. A FORCE is a large body of troops, typically consisting of several thousand soldiers. A battalion is a military UNIT typically consisting of 300 to 800 soldiers. Together, these terms refer to a body of troops, which can range in size from a few dozen to several thousand soldiers.