DEMPSEY ADDRESS Army Gen. Martin E. Dempsey, chairman of the Joint Chiefs of Staff, addresses students at the Air Force Senior Noncommissioned Officers Academy at Gunter Annex on Maxwell Air Force Base, Ala., Feb. 21, 2012. SHARE: Download: Full Size (0.05 MB) Credit: VIRIN: 501397-Z-VHS60-179.jpg Photo Gallery