The Museum’s exhibits and programs cover US military history from the Revolutionary War to the present War on Terror, with an emphasis on the interwar US Army (1920-41). By special arrangement with the Montana National Guard the Museum’s main exhibit building is located in Building T-316, Fort Missoula – the former headquarters for the Fort Missoula District of the US Covilian Conservation Corps. During the Great Depression of the 1930’s Army and civilian CCC personnel in Building T-316 oversaw the processing, equipping and training of over 40,000 CCC corpsmen.