U.S. Air Force Staff Sgt. Taylor Sutton, 435th Security Forces Squadron ground combat readiness training center instructor, leads the way during the simulated casualty exercise, Frozen Defender, in Grostenquin, France, Jan. 14, 2020. Frozen Defender tests the squadron’s capabilities in a contested environment under harsh conditions. The Defenders faced scenarios requiring self-aid and buddy care practices. (U.S. Air Force photo by Staff Sgt. Devin Boyer)