U.S. Marines with 2nd Battalion, 6th Marine Regiment (2/6), 2nd Marine Division (MARDIV, conduct a nine kilometer hike during a Winter Training Exercise at Marine Corps Mountain Warfare Training Center (MCMWTC), Bridgeport, Calif., Jan. 29, 2015. The Marines of 2/6 participated in the exercise at MCMWTC to prepare them for the challenges of operating in cold and mountainous environments. (U.S. Marine Corps photo by Cpl. Jalen D. Phillips, 2D MARDIV Combat Camera/Released)