U.S. Marine Corps Combat Instructor's with Echo Company, Infantry Training Battalion, School of Infantry-East stand at parade rest in front of their platoons before a graduation ceremony, Camp Geiger, N. C., Aug. 15, 2013. The basic course consists of 20 training days that involves range week, land navigation, patrolling, offensive and defensive tactics and military operations in urban terrain. (U.S. Marine Corps photo by Staff Sgt. Christine M. Wilcox, Combat Camera, SOI-E/Released)