Capt. Joseph Christensen, 120th Fighter Squadron pilot, refuels while returning from exercise Amalgam Dart 21-01, June 17, 2021. With operations ranging across the Arctic from the Beaufort Sea to Thule, Greenland, Amalgam Dart 21-01 provides North American Aerospace Defense Command the opportunity to hone continental defense skills as Canadian and U.S. forces operate together in the Arctic. (U.S. Air National Guard photo by Airman Mira Roman)