U.S. Marines with Headquarters Company, Headquarters Battalion, 2nd Marine Division (MARDIV) lift a gray water tank into a Medium Tactical Vehicle Replacement during a Command Post Exercise at Tactical Landing Zone Bluebird, Camp Lejeune, N.C., Jan. 27, 2015. The exercise was conducted in order to maintain unit readiness and remain combat efficient. (U.S. Marine Corps photo by Lance Cpl. Sarah Blendowski, 2nd MARDIV Combat Camera/Released)