Are you combat fit?
U.S. Air Force Staff Sgt. Brendan Manley-Bryant, 333rd Aircraft Maintenance Unit dedicated crew chief, performs pushups as Airman 1st Class Tyler Copeland, 333rd AMU assistant dedicated crew chief, catches up to him during the Combat Fitness Challenge on Seymour Johnson Air Force Base, N.C., Oct. 20, 2012. Manley-Bryant and Copeland were in a neck and neck competition during the challenge and finished within seconds of one another. (U.S. Air Force photo/Airman 1st Class Aubrey White/Released)