This building allows you to bring in infantry. Improving your barracks opens new types of infantry units and improves their efficiency. The game begins with a first level Barracks.
On June 30, 1939, the US Army numbered only 187,983 troops, and the National Guard numbered 199,491. The outbreak of war in Europe that September led to a gradual increase in troops. On August 27, 1940 the United States Congress authorized the mobilization of the National Guard. September 16, 1940 saw the first call for a peacetime draft in the history of the United States. In 1944, after several expansions, the armed forces numbered 8,291,336 troops.