Simulated helicopter crash

Marines prepare to be dunked underwater during a training exercise at Camp Lejeune, N.C., Sept. 26, 2016. The Modular Amphibious Egress Training, also known as the Helo Dunker, teaches Marines survival techniques to use if a helicopter lands in the water. The Marines conducting the training are with 2nd Light Armored Reconnaissance Battalion. (U.S. Marine Corps photo by Lance Cpl. Jon Sosner)