Maj. Marc Walker, operations officer, 8th Communication Battalion, and 1st Sgt. Hector Hernandez, first sergeant, Headquarters Company, 8th Comm. Bn., lead Marines with 8th Communication Battalion during the Bristol Fourth of July Parade in Bristol, Rhode Island, July 4, 2016. Marines marched directly behind the sailors of the USS Arlington and Navy officer candidates from Naval Officer Training Command Newport, RI. (U.S. Marine Corps photo by Cpl. Paul S. Martinez/Released) - Maj. Marc Walker, operations officer, 8th Communication Battalion, and 1st Sgt. Hector Hernandez, first sergeant, Headquarters Company, 8th Comm. Bn., lead Marines with 8th Communication Battalion during the Bristol Fourth of July Parade in Bristol, Rhode Island, July 4, 2016. Marines marched directly behind the sailors of the USS Arlington and Navy officer candidates from Naval Officer Training Command Newport, RI. (U.S. Marine Corps photo by Cpl. Paul S. Martinez/Released)

Marine students undergoing the Martial Arts Instructor Course review course material following a training session at Camp Lejeune, N.C., Dec. 4, 2015. The three-week long course will qualify its students to be Martial Arts instructors. The course’s development of endurance, strength, fighting ability and knowledge will benefit Marines for future operations in any location. (U.S. Marine Corps photo by Cpl. Paul S. Martinez/Released) - Marine students undergoing the Martial Arts Instructor Course review course material following a training session at Camp Lejeune, N.C., Dec. 4, 2015. The three-week long course will qualify its students to be Martial Arts instructors. The course’s development of endurance, strength, fighting ability and knowledge will benefit Marines for future operations in any location. (U.S. Marine Corps photo by Cpl. Paul S. Martinez/Released)