A U.S. Air Force F-16 Fighting Falcon assigned to the 510th Fighter Squadron sits on the flightline near Moroccan F-16s during an Agile Combat Employment event during exercise African Lion 21 on Guelmim Air Base, Morocco, June 16, 2021. ACE events prepare U.S. forces in Africa to protect and defend partners and generate lethal combat air power should deterrence fail. (U.S. Air Force photo by Airman 1st Class Thomas S. Keisler IV)