Marine Corps Martial Arts Program (MCMAP) - Recruits with Oscar Company, 4th Recruit Training Battalion, learn basic fighting skills through the Marine Corps Martial Arts Program (MCMAP) at Marine Corps Recruit Depot Parris Island, S.C., Sept. 8, 2019. The purpose of MCMAP is to teach recruits how to defeat the enemy using hand-to-hand combat. (U.S Marine Corps photo by Lance Cpl. Ezekieljay Correa)