48th Fighter Wing aircraft line the apron in a simulated deployment environment during Agile Combat Employment training at Royal Air Force Lakenheath, England, Jan. 12, 2021. Agile Combat Employment capabilities ensure U.S. Air Forces in Europe, along with allies and partners, are ready for potential last minute contingencies by allowing forces to operate from locations with varying levels of capacity and support. (U.S. Air Force photo by Airman 1st Class Jessi Monte)