U.S. Air Force Capt. Charlie Meier, 480th Fighter Squadron pilot, greets his children after returning from Exercise Trident Juncture 18 at Spangdahlem Air Base, Germany, Nov. 9, 2018. Participation in the exercise was to plan and conduct major collective defense operations to evaluate and test NATO's collective abilities. (U.S. Air Force photo by Airman 1st Class Branden Rae)