CONVOY TRAINING U.S. Air Force airmen in the Phoenix Warrior Training Course 07-6 practice conducting a convoy checkpoint during training Aug. 21, 2007, on a range at Fort Dix, N.J. The course focuses on contingency skills for Air Force security forces and is taught by the U.S. Air Force Expeditionary Center's 421st Combat Training Squadron. SHARE: Download: Full Size (0.04 MB) Credit: VIRIN: 017627-U-OXJ80-249.jpg Photo Gallery