A Romanian air force F-16 Fighting Falcon aircraft drops back from a U.S. Air Force KC-135 Stratotanker aircraft assigned to the 100th Air Refueling Wing, Royal Air Force Mildenhall, England, after receiving fuel over Romania, Oct. 7, 2021. The 100th ARW is the only permanent U.S. air refueling wing in Europe and Africa. (U.S. Air Force photo by Senior Airman Joseph Barron)