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Airmen from the 820th Base Defense Group at Moody Air Force Base, Ga. and the 1st Special Operations Security Forces Squadron at Hurlburt Field, Fla., line up to start an obstacle course, Dec. 15, 2015, at Camp Blanding, Fla. The obstacle course consisted of nine obstacles such as rope climbs, rope swings, towers and low crawls. (U.S. Air Force photo by Airman 1st Class Lauren M. Johnson/Released)