U.S. Airmen assigned to the 435th Security Forces Squadron carry their supplies to a rally point during exercise Frozen Defender in Grostenquin, France, Jan. 14, 2020. Frozen Defender tests the squadron’s capabilities in a contested environment under harsh conditions. The Defenders quietly entered the training site in formation while providing security from all directions. (U.S. Air Force photo by Staff Sgt. Devin Boyer)