U.S. Air Force Airman First Class Corey Schetzle, 52nd Logistics and Readiness Squadron Fuels Distribution Technician, prepares to refuel a Royal Netherlands Air Force F-16 Fighting Falcon aircraft at Spangdahlem Air Base, Germany, 23 Feb 2018. Four Dutch aircraft stopped at Spangdahlem for fuel and a mission debrief following a large-force exercise including German, French, Dutch and American aircraft supported by a NATO command and control aircraft. Exercises like these allow pilots and crews from many countries to train and exchange ideas with their NATO peers.(U.S. Air Force photo by 1st Lt. Casey Rodriguez)