U.S. Marine Corps Sgt. Vincent L. Walters, left, with

U.S. Marine Corps Sgt. Vincent L. Walters, left, with Instructional Training Company, Support Battalion, Recruit Training Regiment, demonstrates a Marine Corps Martial Arts Program (MCMAP) technique with Lance Cpl. Brian Vado, with Combat Camera, Service Company, Headquarters and Service Battalion, at Marine Corps Recruit Depot San Diego, Calif., Oct. 24, 2016. Walters instructed Vado in MCMAP techniques to assist him in attaining his gray belt. (U.S. Marine Corps photo by Lance Cpl. Robert G. Gavaldon)