U.S. Air Force Col. Korvin Auch, right, 633rd Air Base Wing commander, congratulates the newly selected chief master sergeants during a promotion-release ceremony at Langley Air Force Base, Va., Nov. 8, 2012. Chief master sergeants are key leaders at all levels, from flight to Air Staff, in the Air Force. (U.S. Air Force photo by Senior Airman Racheal E. Watson/Released)