Marines and sailors with Ragnarok Company, 2nd Supply Battalion, 2nd Marine Logistics Group tramp through the sands of Onslow Beach aboard Camp Lejeune, N.C., Dec. 13, 2013. The sand simulated snow, which the service members expect to hike through during winter training aboard the Mountain Warfare Training Center in Bridgeport, Calif., and Cold Response 2014 in Norway.