U.S. Marine Corps Lance Cpl. Samuel C. Ballard, a flight equipment technician assigned to Marine Aviation Logistics Squadron 14, carries a dive brick across the pool during a Water Survival Advanced Course held aboard Marine Corps Air Station Cherry Point, N.C., Aug. 4, 2014. Students were tested on their ability to rescue distressed Marines while in the water simulating real life scenarios. (U.S. Marine Corps photo by Pfc. Koby I. Saunders/Released)