Multinational students attending the International Special Training Centre's Advanced Close Quarter Battle Course participate in a field training exercise at the Hohenfels Training Area, Germany, May 28-29, 2013. The ISTC, headquartered in Pfullendorf, Germany, trains U.S. and partner nation Special Operations Forces and enablers in special forces-specific patrol, medical, staff training, recognition and survival techniques. (U.S. Army photo by Staff Sergeant Pablo N. Piedra / Released)