Shaw Air Force Base
141008-F-SX095-010
U.S. Air Force Senior Airman John Steinkopf, 20th Security Forces Squadron entry controller, lays on the ground after carrying weighted containers during a Defenders Edge Challenge at Shaw Air Force Base, S.C., Oct 8, 2014. During one of 10 obstacles, each of the four Airmen on each team had to transfer heavy containers along with a large tire back-and-forth several times before moving to the next obstacle. (U.S. Air Force photo by Airman 1st Class Jensen Stidham/Released)
141008-F-SX095-010
U.S. Air Force Senior Airman John Steinkopf, 20th Security Forces Squadron entry controller, lays on the ground after carrying weighted containers during a Defenders Edge Challenge at Shaw Air Force Base, S.C., Oct 8, 2014. During one of 10 obstacles, each of the four Airmen on each team had to transfer heavy containers along with a large tire back-and-forth several times before moving to the next obstacle. (U.S. Air Force photo by Airman 1st Class Jensen Stidham/Released)