A U.S. Air Force F-15C Eagle assigned to the 493rd Fighter Squadron awaits completion of pre-flight checks at Royal Air Force Lakenheath, England, Sept. 8, 2020. Night Flying Exercises provide 48th Fighter Wing aircrew and support personnel the experience needed to maintain a ready force capable of ensuring the collective defence of the NATO alliance. (U.S. Air Force photo by Airman 1st Class Jessi Monte)