U.S. Navy Petty Officer 3rd Class David M. Riley, a field corpsman assigned to 2nd Medical Battalion, sets up a tactical recovery of aircraft and personnel scenario during Exercise Bold Alligator on Atlantic Airfield, N.C., Nov. 6, 2014. Exercise Bold Alligator is a multi-national, synthetic naval amphibious exercise designed to train across the full range of amphibious capabilities in order to provide unique and contemporary solutions to global challenges. (U.S. Marine Corps photo by Lance Cpl. Jodson B. Graves/Released)