U.S. Army Spc. Jeffery Clopper from the 541st Engineer Company closes the door to a humvee egress assistance trainer during a situational training exercise at the Joint Multinational Readiness Center in Hohenfels, Germany, Nov. 30, 2012. The STX is designed to prepare and train U.S. and multinational forces for medical evacuation and route clearance operations in the Afghanistan operational environment. (U.S. Army photo by Spc. W. Ryan Livingston/Released)