U.S. Army Staff Sgt. Clint Koerperich (left) patrols with Afghan soldiers to investigate possible insurgent cache locations in the Zormat district of Afghanistan on Feb. 5, 2011. Koerperich is assigned to Company C, 1st Battalion, 168th Infantry Regiment. The soldiers acted on a tip provided by the Guardians of Peace program, which rewards Afghan citizens who provide useful and actionable intelligence to Afghan and coalition forces.