Marines with Golf Battery, 2nd Battalion, 10th Marine Regiment, 2nd Marine Division, fire an M-327 120mm towed rifled mortar expeditionary fire support system for training during the field operation Rolling Thunder aboard Fort Bragg, N.C., May 8, 2014. During this training, the Marines worked with Marines from 2nd Assault Amphibian Battalion, 2nd Marine Division in order to become more technically and tactically proficient in the utilization of their assault amphibious vehicles. - Marines with Golf Battery, 2nd Battalion, 10th Marine Regiment, 2nd Marine Division, fire an M-327 120mm towed rifled mortar expeditionary fire support system for training during the field operation Rolling Thunder aboard Fort Bragg, N.C., May 8, 2014. During this training, the Marines worked with Marines from 2nd Assault Amphibian Battalion, 2nd Marine Division in order to become more technically and tactically proficient in the utilization of their assault amphibious vehicles.

Marines with Golf Battery, 2nd Battalion, 10th Marine Regiment, 2nd Marine Division, employ the M-777 lightweight 155 mm howitzer during a competition for the title of Top Gun as part of Rolling Thunder held at Fort Bragg, N.C., May 7, 2014. Rolling Thunder is a biannual field operation in which Marines learn to be more proficient at effectively employing their respective weapons systems. - Marines with Golf Battery, 2nd Battalion, 10th Marine Regiment, 2nd Marine Division, employ the M-777 lightweight 155 mm howitzer during a competition for the title of Top Gun as part of Rolling Thunder held at Fort Bragg, N.C., May 7, 2014. Rolling Thunder is a biannual field operation in which Marines learn to be more proficient at effectively employing their respective weapons systems.