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U.S. Air Force Staff Sgt. Kristopher Harpoon and Airman 1st Class Aaron Osbourne, 5th Air Support Operations Squadron, Joint Base Lewis-McChord, Wash., tactical air control party specialists, rescue a simulated victim from a damaged vehicle during the causality evacuation exercise as part of Cascade Challenge July 19, 2016, at Fort Wainright, Alaska. The competitors had to transport the casualty to safety while in a simulated firefight with enemy combatants.