A U.S. Marine builds a snow wall during cold-weather training near Bjerkvik, Norway, Feb. 23. - A U.S. Marine builds a snow wall during cold-weather training near Bjerkvik, Norway, Feb. 23.
U.S. Marines participate in a foot patrol during cold-weather training at Bjerkvik, Norway, Feb. 23. - U.S. Marines participate in a foot patrol during cold-weather training at Bjerkvik, Norway, Feb. 23.