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

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 advanced-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 everything 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 up in open order.