Soldiers from the 10th Transportation Battalion, 7th Sustainment Brigade carry a simulated casualty across an Olympic-sized swimming pool during a pre-dawn squad fitness competition at Fort Eustis, Va., May 17, 2013. The competition featured events such as litter carries, push-ups, pull-ups, sit-ups and a seven-mile ruck march, all designed to test the physical abilities of Soldiers in the battalion’s companies. (U.S. Army photo by Sgt. 1st Class Brian G. Rhodes/Released)