Marines attempt to locate a notional target during a company attack exercise at Fort A.P. Hill, Va., May 1, 2017. The Marines conducted a live-fire exercise that helped improve their leadership and teamwork abilities. The Marines are with G Company, 2nd Battalion, 2nd Marine Regiment. (U.S. Marine Corps photo by Pfc. Abrey D. Liggins) - Marines attempt to locate a notional target during a company attack exercise at Fort A.P. Hill, Va., May 1, 2017. The Marines conducted a live-fire exercise that helped improve their leadership and teamwork abilities. The Marines are with G Company, 2nd Battalion, 2nd Marine Regiment. (U.S. Marine Corps photo by Pfc. Abrey D. Liggins)

Marines with Alpha Company, 2nd Combat Engineer Battalion, practice firing an unloaded Shoulder-launched Multipurpose Assault Weapon during a platoon fire and maneuver range at Fort A.P. Hill, Va., Aug. 13, 2015. The platoons put everything they had learned so far during the deployment for training exercise to the test by using both their provisional infantry and combat engineering skills during the culminating event. (U.S. Marine Corps photo by Cpl. Michelle Reif/Released) - Marines with Alpha Company, 2nd Combat Engineer Battalion, practice firing an unloaded Shoulder-launched Multipurpose Assault Weapon during a platoon fire and maneuver range at Fort A.P. Hill, Va., Aug. 13, 2015. The platoons put everything they had learned so far during the deployment for training exercise to the test by using both their provisional infantry and combat engineering skills during the culminating event. (U.S. Marine Corps photo by Cpl. Michelle Reif/Released)