Secretary of the Navy Ray Mabus, left, shakes hands

Secretary of the Navy Ray Mabus, left, shakes hands with U.S. Marine Corps Sgt. Maj. Donna A. Dunbar, sergeant major, 4th Recruit Training Battalion, Marine Corps Recruit Depot Parris Island (MCRDPI), at the 4th Recruit Training Battalion building aboard MCRDPI, S.C., March 3, 2015. Mabus visited MCRDPI in order to see firsthand how young men and women from across the country are transformed into United States Marines. (U.S. Marine Corps photo by Lance Cpl. Colby Cooper/Released)