Marines with Battery and Golf Co., 2nd Battalion, 6th Marines, capture a role-playing enemy within the confines of their shields during a riot control exercise aboard Camp Lejeune, N.C., March 24, 2015. The Marines moved swiftly to pull the enemy back through their formation, then closed back up in a defensive position as one straight line of shields. - Marines with Battery and Golf Co., 2nd Battalion, 6th Marines, capture a role-playing enemy within the confines of their shields during a riot control exercise aboard Camp Lejeune, N.C., March 24, 2015. The Marines moved swiftly to pull the enemy back through their formation, then closed back up in a defensive position as one straight line of shields.

Corporal James Lafrance, a Reconnaissance Marine with Force Company, 1st Reconnaissance Battalion, 1st Marine Division, shoots targets with a shotgun during a physical training exercise aboard Marine Corps Base Camp Pendleton, Calif., Nov. 7, 2014. The eight-mile hike had multiple events along the route to test the Marines’ proficiency with various weapon systems. - Corporal James Lafrance, a Reconnaissance Marine with Force Company, 1st Reconnaissance Battalion, 1st Marine Division, shoots targets with a shotgun during a physical training exercise aboard Marine Corps Base Camp Pendleton, Calif., Nov. 7, 2014. The eight-mile hike had multiple events along the route to test the Marines’ proficiency with various weapon systems.