a term frequently used in composition, to denote something behind, or backwards, in respect of another; in opposition to van.

Rear of an Army, signifies, in general, the hindermost part of an army, battalion, regiment, or squadron; also the ground behind either.

Rear Guard, is that body of an army which marches after the main-body; for the march of an army is always composed of an advance-guard, a main body, and a rear-guard; the first and last commanded by a general. The old grand guards of the camp always form the rear-guard of the army, and are to see that every thing come safe to the new camp.

Rear Half files, are the three hindmost ranks of the battalion, when it is drawn up six deep.

Rear Line, of an army encamped, is always 1200 feet at least from the centre line; both of which run parallel to the front line, as also to the reserve.

Rear Rank, is the last rank of a battalion, when drawn up, and generally 16 or 18 feet from the centre-line when drawn in open order.