Italy denies Sigonella to unauthorized US missions

The news reported this morning by Corriere della Sera outlines a very clear diplomatic and operational picture: the Italian government has refused the United States the use of the NAS Sigonella air base (Sicily) as a stopover for aircraft engaged in war actions that have not been previously authorized, with particular reference, at this stage, to assets headed towards the Gulf area.

Rome’s decision does not represent a total closure, but reaffirms a cornerstone principle of bilateral agreements: the infrastructures granted on Italian territory must respond to logistical and defensive purposes (NATO). The use of the base to support extra-national offensive actions requires explicit authorizations and, above all, a prior consultation which, according to what has emerged, was lacking in this case.

The context and anomalous movements of recent weeks

In light of the currently active ban, it is interesting to rewind the tape and analyze some particular movements recorded by our ADS-B sensors in recent weeks. While we cannot establish a direct and unequivocal link with today’s stop, these are anomalies that fit well into the climate of growing attention on diplomatic clearances (overflight and landing permits).

On March 13, we tracked a formation of four Boeing KC-135 Stratotanker aerial refueling aircraft that took off from Pease Air National Guard Base (New Hampshire) and were originally en route to Sigonella. The aircraft were:

• 57-1499 (Callsign: REACH 791)
• 58-0027 (Callsign: REACH 654)
• 57-1435 (Callsign: REACH 470)
• 57-1432 (Callsign: REACH 673)

On that occasion, the formation did not reach Sicily but was diverted to the British base of RAF Mildenhall. The aircraft then actually landed at NAS Sigonella only a few days later, on March 19.

Since then, the activity of these tactical assets (fundamental for in-flight refueling and extending the range of fighters) has become less clear. Our systems picked up only a partial track of one of the aircraft (the KC-135 with registration 57-1435) returning to Sigonella on March 26. Although these delays and diversions may suggest a negotiating stalemate between Rome and Washington over the use of the base for out-of-area operations, it is necessary to maintain caution: it cannot be ruled out that the movements of these tankers were wholly or partly linked to concurrent and pre-programmed NATO exercises in the Mediterranean area (such as Neptune Strike 2026).

The current situation: logistical stopovers guaranteed

What emerges clearly from today’s tracks, however, is the exact perimeter of the Italian ban, which does not translate into a blanket block of US assets.

Confirming this, this morning the radars recorded the regular arrival at Sigonella of a Boeing C-40 Clipper. Being an asset of the US Navy and Air Force typically used for passenger, VIP, or light cargo transport, its landing demonstrates that purely logistical and routine operations between the United States and the Sicilian base are not under discussion. The veto exclusively concerns assets destined for operational support and uncoordinated combat operations.

Conclusions

Rome’s reminder to respect the protocols on NAS Sigonella will likely push the US Command to reprogram its routes for out-of-area missions.