Staff Sgt. David Flowers, of Detachment 3, 366th Training Squadron, warms up with some stretches before his crossfit workout at Eglin Air Force Base, Fla. The explosive ordnance technician was officially returned to duty in June after he lost his right leg and suffered major damage to his left leg in a land mine explosion in Afghanistan in 2009. In August, he begins training to be an EOD instructor at the Navy EOD School. (U.S. Air Force photo/Tech. Sgt. Samuel King Jr.)