Marines with 2nd Tank Battalion, 2nd Marine Division, arrive at the Tactical Assembly Area in Humvees and begin to setup security before nightfall during their Marine Corps Combat Readiness Evaluation aboard Fort Pickett, Va., March 25, 2015. A TAA is used to prepare the unit for future combat operations. It allows the unit to regroup, organize and develop a plan of attack. (U.S. Marine Corps photo by Cpl. Justin T. Updegraff/Released)