U.S. Marines with Heavy Marine Helicopter Squadron 466, assist Marines with Combat Logistics Battalion 26, loading supplies and cargo into their CH-53 Sea Stallion at the U.S. Marine Corps Mountain Warfare Training Center (MWTC) Bridgeport, Calif., Feb. 3, 2015. MWTC trains Marines across the warfighting functions for operations in mountainous, high altitude, and cold weather environments in order to enhance a unit's ability to shoot, move, communicate, sustain, and survive in mountainous regions of the world. (U.S. Marine Corps photo by Sgt. Anthony L. Ortiz/Released)