An F-4 Phantom from Wittmund Air Base, Germany, flies beside a KC-135R Stratotanker from the 100th Air Refueling Wing, RAF Mildenhall, England, during a training mission Feb. 5, 2013, over Germany.
Both the F-4 and the KC-135 platforms have been used by air forces worldwide since before the Vietnam War. (U. S. Air Force photo by Master Sgt. Latisha Cole/Released). Original public domain image from Flickr