The United States Air Force (USAF) has confirmed that it is pulling out of three UK airbases.
The Americans will leave RAF Mildenhall in Suffolk and RAF Alconbury and RAF Molesworth in Cambridgeshire, according to US Defence Secretary Chuck Hagel, who said he understood the move would mean job losses.
"I know that this will result in a reduction of our local host nations workforces at some locations. I value the tremendous support they provided us for decades," he said.
The decision is part of an effort to save the US £320 million a year throughout Europe.
Its largest UK base, RAF Mildenhall in Suffolk, has been used as a transport hub by the USAF, and is home to US Air Force special operations forces, air refueling tankers and around 3,200 American military personnel, as well as 400-500 UK civilian staff employed there.