A U.S. Marine with Marine Medium Tiltrotor Squadron 161 (Reinforced), 15th Marine Expeditionary Unit, provides security during a tactical recovery of aircraft and personnel mission during realistic urban training aboard Camp Roberts, Calif., Dec. 7, 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)