Gen. Maryanne Miller becomes the first Air Force Reserve four-star general Published Sept. 11, 2018 By Staff Sgt. Michael Cossaboom 375th Air Mobility Wing Public Affairs Scott Air Force Base, Ill. -- Gen. Maryanne Miller, incoming Air Mobility Command commander, receives the oath of office from Air Force Chief of Staff Gen. David L. Goldfein during a promotion ceremony at Scott Air Force Base, Illinois, Sept. 7, 2018. Previous to this assignment, Miller served as the commander of Air Force Reserve Command and chief of the Air Force Reserve. Miller became the first Reserve Airman to become a four-star general and the first Reserve Airman to command an Air Force major command outside of AFRC. AMC relies on a total force of more than 106,000 active-duty, Guard, Reserve, and civilian mobility professionals. (U.S. Air Force photo by Staff Sgt. Michael Cossaboom)