U.S. Marine Corps Lance Cpl. Dave Rattigan, field artillery cannoneer with Kilo Battery, 1st Battalion, 10th Marine Regiment (1/10), entrenches a hole for a power cord to the computer of an M198 155 mm howitzer during the 2nd Marine Division's Command Post Exercise (CPX) at GP 26, Camp Lejeune, N.C., 2014. The CPX is designed to strengthen the 2nd Marine Division's unit cohesion and combat effectiveness for future operations. (U.S. Marine Corps photo by Lance Cpl. Christopher Mendoza, 2nd MARDIV, Combat Camera/Released)