Due to RAF Fairford's location and infrastructure, the airfield is designated as a forward operating location for the US Air Force. It was used in the first Gulf War in 1991, with B-52s and KC-135s from Eaker AFB in Arkansas. It was later used during Operation Allied Force in 1999 when B-52s from Barksdale AFB, B-1Bs from Ellsworth AFB and KC-135s from Mountain Home AFB were used. During that conflict, Fairford-based bombers dropped 48% of the ordnance dropped by NATO on targets in the former Yugoslavia. In the 2003 Iraq War, Operation Iraqi Freedom included B-52s based at Minot AFB but flying from Fairford. In recent years the airfield has been occasionally used by American B-2 Spirit stealth bombers and is frequently visited by U-2 aircraft.