A U.S. Air Force pararescueman takes up a security position during a training scenario. A U.S. Air Force pararescueman takes up a security position during a training scenario at a U.S. location during exercise Patriot Archangel on Oct. 17, 2009. The exercise hones Guardian Angel combat operations in simulated hostile urban environments and increases combat effectiveness for pararescuemen. SHARE: Download: Full Size (0.02 MB) Credit: VIRIN: 161494-T-CIK44-522.jpg Photo Gallery