Marine Corps Sgt. John R. Hicks, left, grapples with Sgt. John-David A. Amador during a martial arts instructor course on Marine Corps Air Station Cherry Point, NC on Jan. 29, 2015. Hicks is a master training specialist assigned to the Center of Naval Aviation Technical Training and Amador is an aviation communication systems technician assigned to the 2nd Marine Aircraft Wing. (U.S. Marine Corps photo by Lance Cpl. Koby I. Saunder)