A U.S. Air Force Guardian Angel team provides security. A U.S. Air Force Guardian Angel team from the 82nd Expeditionary Rescue Squadron provides security during a joint mass casualty exercise near Camp Lemonier, Djibouti, on May 20, 2009. The tactical recovery team worked alongside U.S. Marines from the 13th Marine Expeditionary Unit to recover simulated personnel in an austere environment. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 832226-E-CFQ66-862.jpg Photo Gallery