U.S. Marine Corps Lance Cpl. Keegan Brook, landing support specialist, Combat Logistics Battalion 2, 2nd Marine Division (MARDIV), gives the hand signal to halt a M1A1 Abrams Tank atop a rail car in support of a Deployment for Training exercise, Camp Lejeune, N.C., Feb. 17, 2015. The exercise was conducted to strengthen the unit's proficiency and prepare them for future deployments. (U.S. Marine Corps photo by Lance Cpl. Abraham Lopez, 2D MARDIV Combat Camera/Released)