Italy has refused permission for US aircraft to use a key air base in Sicily for operations related to Iran, becoming the latest NATO ally after Spain to deny Washington access to military facilities, according to Reuters.
So far, European Union nations have shown little appetite for direct military involvement in the Iran conflict, a stance that is increasingly causing friction within the administration of Donald Trump.
US request denied over procedural and treaty concerns
The Trump administration had reportedly sought permission to land "some US bombers" at the Sigonella air station in Sicily before heading to the Middle East, Italian daily Corriere Della Sera reported.
The Sigonella base serves as an Italian Air Force installation while also being used by the US Navy. However, Italian authorities denied the request, citing procedural lapses and lack of prior consultation with the government led by Giorgia Meloni.
According to reports, the US sought clearance while the aircraft were already en route to Sicily, raising concerns over protocol violations.
Authorities also pointed to restrictions under a 1950 bilateral treaty, which allows the US to use the base only for logistical and training purposes. The agreement explicitly prohibits its use as a transit hub for transporting weapons during a conflict, unless there is an emergency and approval from the Italian Parliament.
While Italy remains a key NATO ally, the decision reflects its cautious approach toward any direct or indirect involvement in escalating Middle East tensions.
Spain bars US aircraft as well
Italy's move comes a day after Spain took a similar step, barring US military aircraft involved in the Iran war from using its airspace and bases.
Spanish daily El Pais reported that the country's defence minister said the US could not use jointly operated military installations for operations linked to Iran.
This effectively forces US aircraft based in Europe, including in the UK, to take longer routes to reach the Middle East, potentially impacting operational timelines.
US expresses disappointment
The developments have drawn a sharp response from Washington. US Secretary of State Marco Rubio described the lack of support from NATO allies as "very disappointing" and hinted at a possible reassessment of ties.
"If NATO is just about us defending Europe if they are attacked, but them denying us basing rights when we need them, that's not a very good arrangement," Rubio said in an interview with Al Jazeera.
He added that such actions could make it difficult for the US to remain fully engaged in the alliance.
