In June, 1943, the Army Air Forces established the ENT Air Force Base and moved the Second Air Force to the site of the old sanatorium, according to the Pioneers Museum. The U.S. Air Force ...

The first headquarters of the North American Defense Command at Ent Air Force Base, Colorado Springs, Colo. Ent opened in 1951 and closed in 1976. The site is currently home the U.S. Olympics ...