U.S. AIR FORCE ACADEMY, Colo. -- Staff Sgt. Daniel Arnes trains for a hose-drag event by pulling a fire hose 75 feet before spraying a target with it. The hose drag is the fourth of five events which comprise the firefighter combat challenge here, and simulates real-world tasks of firefighting in a timed competition. (U.S. Air Force photo by 2nd Lt. John Ross)