Reagan USAR cavalry 1930s
Reagan’s military service began with the U.S. Army Reserve via at-home Army Extension courses in 1935. He was a private in the Iowa-based 322nd Cavalry Regiment before being commissioned as a second lieutenant in the Officers Reserve Corps. He was later assigned to the 323rd Cavalry Regiment in California and in 1942 requested a transfer to the USAAF where he helped produce 400 training films in the 1st Motion Picture Unit.