What is the oldest Air Force base in the U.S.?
Francis E. Warren Air Force Base
From 1913 to 1916, during the Mexican Revolution, post artillery units were stationed along the border to prevent the struggle from coming onto American soil. During World War I, the post served as a mobilization point and training facility for field artillery and cavalry groups. As World War I began, Fort Russell had become one of the largest military posts in the United States.