U.S. Air Force Tech. Sgt. James Hickom, Ramstein Air Base, 435th Construction and Training Squadron U.S. Air Forces in Europe and Air Forces Africa fire academy NCO in charge, hammers the Keiser force machine during the first Mosel Firefighter Combat Challenge in Ediger-Eller, Germany, July 5, 2014. The Keiser force machine simulates hammering a hole into a burning building. (U.S. Air Force photo by Staff Sgt. Christopher Ruano/Released)