Marines memorize items contained in a box as part of a “Kim’s game” during an endurance course April 17 at the Jungle Warfare Training Center on Camp Gonsalves. The Marines look at the items early in the course and then have to tell the instructors what items were in the box just before the last leg of the event. The simple game tests the participant’s mental capacity while enduring stressful and fatiguing activity. The Marines are with various units assigned to Combat Assault Battalion, 3rd Marine Division, III Marine Expeditionary Force. (U.S. Marine Corps photo by Cpl. Stephen D. Himes/Released)