Evacuation comes weeks after US withdrew bombers from RAF Fairford over suspected Iran-linked security incident The US military has reportedly evacuated aircraft from a second airbase in ⁠Britain after a threat from Iran. Two US refuelling tankers that were using the RAF Mildenhall military base diverted to Germany on Monday morning, while several other tankers at the base ⁠were moved to Germany and other locations later in the day, according to the Wall Street Journal.