A Marine hangs over the edge of a cliff June 17 during

A Marine hangs over the edge of a cliff June 17 during a jungle skills course at the Jungle Warfare Training Center on Camp Gonslaves. The hasty rappel is the most important event because it is what Marines are most likely to encounter in an operational environment, according to Sgt. Caleb A. Maclagan, a range safety officer and instructor with JWTC. The Marines are with various units assigned to III Marine Expeditionary Force. (U.S. Marine Corps photo by Lance Cpl. Tyler S. Giguere/Released)