Middle East — 2026-11-11

USAF Disperses KC-135 Fleet From RAF Mildenhall After Iranian Threat Raises Force Protection to FPCON Charlie

BLUFAt least five of the dispersed KC-135 tankers will likely be tracked back at RAF Mildenhall by November 25, as the dispersal appears precautionary rather than a prelude to sustained forward posturing against Iran.

Ten KC-135 tankers and three CV-22 Ospreys left RAF Mildenhall on Monday, and two more KC-135s departed Tuesday, according to open-source flight tracking cited by The War Zone 1. The tankers went to Spangdahlem, Ramstein, Moron and Glasgow Prestwick, and the CV-22s to RAF Lakenheath 1. A source told ABC News the move followed an unspecified Iranian threat and that Mildenhall and Lakenheath were raised to FPCON Charlie 2. The Wall Street Journal reported that U.S. officials are still discussing whether the threat is imminent or general; The War Zone could not confirm this 1. USAFE declined to comment on intelligence, and Secretary of State Rubio said major combat operations against Iran are not imminent 1.

Analysis
We have high confidence the dispersal is a precaution, because flight trackers logged every departure and destination, and the aircraft moved to nearby bases rather than distant theaters. FPCON Charlie applies when intelligence indicates terrorist action is anticipated, yet USAFE has described no change in the Iranian threat itself, and the threat rests on unnamed sources, with the Wall Street Journal account unconfirmed. Rubio's statement that major combat operations are not imminent lowers the pressure for a long absence. At least five of the dispersed KC-135 tankers will likely be observed back at RAF Mildenhall between November 11 and November 25. A longer shift of refueling capacity to continental bases, driven by concern over British installations, may instead happen. If the tankers return, European Command and allied planners can plan refueling from Mildenhall again, but if they stay away, they must plan European and Middle East tanker support from Spangdahlem, Ramstein and Moron.

4 sources