U.S. Army Staff Sgt. Jeffrey Jewell, 128th Aviation Brigade 1st-210th Aviation Regiment instructor, runs to catch up with his team mates during the ruck march Highlander Challenge at Fort Eustis, Va., July 13, 2015. The ruck march was the final event and each team had to cross the finish line together to earn points. (U.S. Air Force photo by Staff Sgt. Natasha Stannard/Released)