Marine Corps Cpl. Sarah Cruz, a chemical, biological, radiological and nuclear defense specialist assigned to Marine Aircraft Group 26, walks in snowshoes during exercise Ullr Shield on Fort McCoy, Wis., Jan. 17, 2018. Ullr Shield is a training exercise designed to improve 2nd Marine Aircraft Wing’s capabilities in extreme cold weather environments. ( Marine Corps photo by Lance Cpl. Cody Rowe)

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Photo credit: © AB Forces News Collection / Alamy / Afripics
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Keywords: 2nd, aircraft, cold, exercise, hike, marine, patrol, plunge, polar, shield, skiing, snowshoe, training, ullr, weather, wing