U.S. Soldiers with 615th Military Police (MP) Company, 709th MP Battalion, maneuver over an obstacle on the rugged terrain trail (RTT) at Grafenwoehr, Germany, March 26, 2013. The RTT combines foot marching with rapid elevation changes and is designed to replicate terrain in the current operating environment. (U.S. Army photo by Markus Rauchenberger/Released)