CH-47 Chinook fitted with skids parked on snow at Fort Wainright, Alaska

UNITED STATES - MARCH 12: In this handout footage provided by U.S. Department of Defense, CH-47 Chinooks from 1st Battalion, 52nd Aviation Regiment carrying Marines from 2nd Battalion, 8th Field Artillery Regiment conduct ground refueling operations at Fort Wainwright, Alaska as part of the Joint Force Land Component Command in support of exercise Arctic Edge 2018. As the JFLCC for the exercise, U.S. Army Alaska is the headquarters responsible for command and control of all ground-based forces participating in the exercise. (Footage by U.S. Department of Defense/Milmotion via Getty Images)