Petty Officer 2nd Class Vonterrias Foster, a Fleet Marine Force hospital corpsman with Bravo Company, 4th Reconnaissance Battalion, 4th Marine Division, Marine Forces Reserve, pulls a swim casualty from the pool in a demonstration of safety procedures before a reconnaissance assessment at the Combat Center Training Tank at Marine Corps Air Ground Combat Center Twentynine Palms, Calif., June 16, 2015. Marines must pass the swim intensive assessment in order to be accepted into the Basic Reconnaissance Course. (U.S. Marine Corps photo by Cpl. Ian Leones/Released)