A student at the Infantry Training Battalion performs the grenade throw during the Combat Fitness Test at Camp Geiger, N.C., Sept. 26, 2013. The students must pass the ITB standard for the physical fitness test and the CFT to continue on in the course. The students are part of the first ITB company to include female Marines as part of ongoing research into opening combat-related job fields to women. (U.S. Marine Corps photo by Sgt. Tyler L. Main / Released)