US shifts planes from UK base amid Iran threat concerns

The United States military is pulling aircraft from a second airfield in the United Kingdom in response to what officials describe as a threat from Iran. According to a report by The Wall Street Journal, two US refueling tankers and several other tankers based at RAF Mildenhall in eastern England diverted to Germany and other locations on Monday.

The move follows the US decision to upgrade the security posture at both RAF Mildenhall and RAF Lakenheath to Force Protection Condition Charlie. This is the second-highest defensive threat level in the US Department of Defense system. FPCON Charlie is activated when intelligence suggests a terrorist action is likely, rather than merely possible or rare.

A US official familiar with the matter told the Wall Street Journal that the precise nature of the threat to RAF Mildenhall remains under discussion. The military has not specified whether the threat involves a cyber attack, a physical sabotage attempt, or a coordinated strike. The ambiguity has left UK defense planners working with limited public information about the scope of the risk.

This incident builds on a series of security concerns raised over the past several months. In September, five men were arrested outside RAF Fairford in southwest England after a security incident. Two additional individuals were later detained on suspicion of assisting Iranian intelligence. The circumstances of the September arrests remain largely unexplained, but the event prompted the US to remove its B-1 bombers from the base.

RAF Fairford had been used by US bombers that carried out strikes on Iran as part of the wider conflict. British Prime Minister Andy Burnham stated last month that the activity at RAF Fairford was likely coordinated in Iran. Tehran’s ambassador to the UK has denied involvement in any plot against the airbase. However, the Islamic Revolutionary Guard Corps declared in July that Fairford and any other base used to launch attacks against Iran were legitimate targets.

The UK Ministry of Defence issued a statement saying it does not routinely comment on the activity of other nations. A spokesperson added that aircraft and other assets move regularly according to operational requirements. A US Air Force spokesperson similarly noted that aircraft rotate between installations and operating locations for various reasons, without specifying which factors drove the recent departure from Mildenhall.