Airmen assigned to the 319th Aircraft Maintenance Squadron work together to perform regular preflight maintenance for an RQ-4 Global Hawk on Grand Forks Air Force Base, N.D., Sept. 22, 2020. The RQ-4 Global Hawk is a high-altitude, long-endurance, remotely piloted aircraft with an integrated sensor suite that provides global all-weather, day or night intelligence, surveillance and reconnaissance capability. (U.S. Air Force photo by Senior Airman Elora J. McCutcheon)