Secretary Gates talks to U.S. airmen assigned to the Air Mobility Command. Secretary of Defense Robert M. Gates talks to U.S. airmen assigned to the Air Mobility Command on Scott Air Force Base, Ill., on June 10, 2008. During the visit, Gates reinforced his belief that the U.S. Air Force is the world's premier air force and discussed the recent resignations of two top Air Force officials. SHARE: Download: Full Size (0.03 MB) Credit: VIRIN: 379038-S-FSD12-959.jpg Photo Gallery