An M1 Abrams tank with Company E, 4th Tank Battalion, 4th Marine Division, Marine Forces Reserve, fires a mounted .50 caliber machinegun during a live-fire range as part of the battalion’s annual training exercise here, July 21, 2014. The two week exercise included live-fire tank and infantry integration as well as amphibious operations which gave the Marines a chance to operate in a simulated ship-to-shore movement. (U.S. Marine Corps photo by Cpl. Codey Underwood)