Secretary Cohen addresses U.S. military personnel serving at Incirlik Air Base, Turkey. Secretary of Defense William S. Cohen addresses U.S. military personnel serving at Incirlik Air Base, Turkey, on July 14, 1999. The air base is used by Turkey, the U.S., and Great Britain as the headquarters of Operation Northern Watch. Northern Watch is the U.S. and coalition enforcement of the no-fly-zone over Northern Iraq. SHARE: Download: Full Size (0.03 MB) Credit: VIRIN: 674579-W-HTU49-477.jpg Photo Gallery