U.S. Air Force Master Sgt. Donald Stichter, 52nd Equipment Maintenance Squadron NCO in charge of munitions inspection from Lakewood, Colo., rests during a combat fitness workout May 5, 2014, at Spangdahlem Air Base, Germany. Stichter used combat fitness to train for his first marathon. (U.S. Air Force photo by Senior Airman Rusty Frank/Released)