Capt. Edwin Powers, an instructor with the Marine Corps

Capt. Edwin Powers, an instructor with the Marine Corps Mountain Warfare Training Center, teaches a winter survival class at MCMWTC, Bridgeport, Calif., Jan. 24, 2018. Powers taught Marines from Combat Logistics Group 25 and 2nd Transportation Support Battalion, as they took part in cold weather training designed to provide the Marines experience in climbing, military mountaineering, snow mobility, field craft, and survival. (U.S. Marine Corps photo by Cpl. Sean M. Evans)