Ethan, son of Senior Master Sgt. Jeffery Sipos with the 35th Civil Engineer Squadron, cross country skis during the Klondike Derby at Misawa Air Base, Japan, Jan. 21, 2017. This was the last station of the day and one of the most difficult for the boys. The Klondike Derby taught tent setup, fire buring, first aid and other surival skills to help overcome the dangers of a cold environment. (U.S. Air Force photo by Tech Sgt. Araceli Alarcon)
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