U.S. Marines with Combat Logistics Battalion 15, 15th Marine Expeditionary Unit, hold security after egressing from a Humvee Egress Assistance Trainer during realistic urban training aboard Fort Hunter Liggett, Calif., Dec. 13, 2014. RUT prepares the 15th MEU's Marines for their upcoming deployment, enhancing their combat skills in environments similar to those they may find in future missions. (U.S. Marine Corps photo by Cpl. Steve H. Lopez/Released)