Senior Airman Mark Thornton, 911th Force Support Squadron, Pittsburgh, Pa., pulls a rope to raise the top cover of a tent over its poles during the Readiness Challenge for Force Support Silver Flag at Dobbins Air Reserve Base, Georgia, March 12, 2015. The challenge consisted of teams competing against each other in nine different events ranging from following a convoy, building tents, fixing Babington burners, cooking meals, planning lodging, planning a base from scratch, driving a forklift and a scavenger hunt. (U.S. Air Force photo/Senior Airman Daniel Phelps)