DIVISION, in military language, signifies generally a certain portion of an army, consisting of infantry and cavalry, either together or separately. The divisions of an army are the several brigades and squadrons of which it is composed. The divisions of a battalion are the several platoons into which a regiment or battalion is divided. The term is also applied to any number of men on military duty detached from an established body; as a division of artillery, a division of pioneers, &c.