Currently operates 15 Boeing KC-135R’s and Boeing KC-135T’s.
The 100th Air Refuelling Wing is assigned to the Third Air Force, United States Air Forces in Europe - Air Forces Africa. It is stationed at RAF Mildenhall, England. It is also the host wing at RAF Mildenhall.
The 100 ARW is the only permanent U.S. air refuelling wing in the European theatre. During World War II, its predecessor unit, the 100th Bombardment Group (Heavy), was an Eighth Air Force B-17 Flying Fortress unit in England, stationed at RAF Thorpe Abbotts. Flying over 300 combat missions, the group earned two Distinguished Unit Citations (Regensburg, 17 August 1943; Berlin, 4/6/8 March 1944). The group suffered tremendous losses in combat, with 177 Aircraft MIA, flying its last mission on 20 April 1945.
One of the wing's honours is that it is the only modern USAF operational wing allowed to display on its assigned aircraft the tail code (Square-D) of its World War II predecessor.
The wing has been based at RAF Mildenhall since 1st February 1992.