Gen. Jeff Harrigian, right, U.S. Air Forces in Europe and Air Forces Africa commander, and Capt. Daniel Cook, 480th Fighter Squadron pilot, prepare for a flight during an Agile Combat Employment exercise at Spangdahlem Air Base, Germany, June 25, 2020. ACE is a fundamental element of the U.S. security cooperation efforts, such as key leader engagement, exercises, subject matter expert exchanges, workshops, and symposiums. (U.S. Air Force photo by Senior Airman Branden Rae)