U.S. Marine Corps Lance Cpl. James Culler, rifleman, 2nd Battalion, 8th Marine Regiment, 2nd Marine Division engages targets with an M136E1 Anti Tank 4-Combined Space during a live fire exercise on Kilo Range 509 aboard Camp Devil Dog, N.C., Feb. 26, 2014. The unit, having recently returned from Afghanistan, used the exercise to maintain combat tactics for future deployments and operations. (U.S. Marine Corps photo by Lance Cpl. Christopher Mendoza, 2nd MARDIV, Combat Camera/Released)