A U.S. Marine with Combat Logistics Battalion 2, swims back to the edge of the pool after performing a self-rescue drill during a basic qualification course aboard Camp Lejeune, N.C., March 18, 2015. The purpose of the course was to maintain proficiency, and enhance the Marines skills in water survival techniques. (U.S. Marine Corps photo by Lance Cpl. Andre Dakis/26th MEU Combat Camera/Released)