Cpl. Brendan A. Aguilar, left, and Cpl. Samuel C. Davis practice counter moves in the shallow waters of Kin Blue, Okinawa, Nov. 21, during the culminating event for Marine Corps Martial Arts Instructor course 1-15. The Marines and sailor in the course trained for three weeks in order to earn their instructor tab. After earning their tab, they now have the ability to practice and teach the disciplines and lessons they learned from the course. The course was run by Headquarters and Support Battalion, Marine Corps Installation Pacific-Marine Corps Base Camp Butler, Japan. Aguilar is a motor vehicle operator assigned to Headquarters Battalion, 3rd Marine Division, III Marine Expeditionary Force. Davis is an assault amphibious vehicle technician assigned to 3rd Maintenance Battalion, Combat Logistics Regiment 35, 3rd Marine Logistics Group, III MEF. (Marine Corps Photo by Cpl. Joey S. Holeman, Jr./ Released)