U.S. Marines with Alpha Battery, 1st Battalion, 10th Marine Regiment, 2nd Marine Division (MARDIV), prepare for a live fire mission using M777 towed 155mm howitzers during exercise Rolling Thunder 10-14 at Fort Bragg, N.C., Oct. 19, 2014. The exercise was held to train Marines and sailors on mission essential task skills and artillery, while additionally focusing on their ability to operate as a Marine Air Ground Task Force Command element. (U.S. Marine Corps photo by Lance Cpl. Kelly L. Timney, 2nd MARDIV, Combat Camera/Released)