U.S. Air Force Staff Sgt. Till Schanz, 4th Air Support Operations Squadron power productions, Sullivan Barracks, Mannheim, Germany, attempts to complete an obstacle during exercise Allied Strike 10, Grafenwoehr, Germany, July 23, 2010. Allied Strike is Europe's premier close air support exercise, held annually to conduct robust, realistic CAS training that helps build partnership capacity among allied NATO nations and joint services while refining the latest operational CAS tactics. For more Allied Strike information go to www.usafe.af.mil/alliedstrike.asp. (U.S. Air Force photo by Senior Airman Caleb Pierce)