A U.S. Air Force F-16 Fighting Falcon, assigned to the 480th Fighter Squadron, lands at Spangdahlem Air Base, Germany, Dec. 10, 2019. Spangdahlem F-16s participated in an Allied Combat Lethality Exercise with the Polish air force to improve readiness and coordination with NATO partners in preparation for potential times of crisis. (U.S. Air Force photo by Airman 1st Class Valerie Seelye)