The Fort Des Moines Provisional Army Officer Training School in Des Moines, Iowa was where African Americans were trained to be officers for the U.S. Army during World War I and women first began training for US Army service in 1942 as part of the Women's Army Corps. The grounds of Fort Des Moines were used for U.S. Army training beginning in 1901, and the all-Black 25th Infantry Regiment began training in 1903. In 1917 the first officer candidate class of African Americans in United State military history received commissions. Also in 1917 a training camp for black medical personnel began. In 1949 the post became a U.S.