Pararescuemen assigned to Royal Air Force Lakenheath's 57th Rescue Squadron prepare to rappel from an HH-60G Pave Hawk during exercise Joint Warrior 15-1 in Scotland, April 22, 2015. The exercise tested the ability of armed forces from various countries to synchronize during worldwide operations. (U.S. Air Force photo/Senior Airman Erin O'Shea)
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