The term 'Army Divisions' refers to the organizational structure of the United States Army. Divisions are the largest and most powerful units in the Army, and are typically composed of several brigades and other smaller units. Divisions are responsible for carrying out large-scale operations, such as major offensives or defensive operations. The term 'Units' (5 letters) is a general term that can refer to any type of military unit, from a single soldier to a large division.