GUARDIAN ANGEL A U.S. Air Force pararescueman surveys his area during a training scenario at an undisclosed U.S. location during exercise Patriot Archangel, 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 (0.08 MB) Credit: VIRIN: 783070-Y-BOQ06-414.jpg Photo Gallery