Helicopter pilot students learn the importance of teamwork in boarding a survival raft, should their helicopter go down over water, during a training exercise at the Helicopter Over-water Survival Training facility on Fort Rucker, Ala., April 18, 2012. The students are assigned to Bravo Company, 1st Battalion, 145th Aviation Regiment out of Fort Rucker, Ala. (U.S. Army photo Carlton Wallace/Released)