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Portugal probes US use of Lajes base during Iran war

Cattle graze in front of U.S. Air Force KC-46 Pegasus tankers and a Navy P-8 Poseidon aircraft at Lajes Air Base, Terceira island, in the Azores archipelago, Portugal, in the Atlantic Ocean on Feb. 23, 2026. (AFP Photo)
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Cattle graze in front of U.S. Air Force KC-46 Pegasus tankers and a Navy P-8 Poseidon aircraft at Lajes Air Base, Terceira island, in the Azores archipelago, Portugal, in the Atlantic Ocean on Feb. 23, 2026. (AFP Photo)
October 03, 2026 05:22 PM GMT+03:00

Portuguese prosecutors opened an investigation Saturday into the legality of the government's authorization of U.S. use of the Lajes Air Base in the Azores during the Iran conflict, Reuters reported.

The probe follows a complaint by members of the opposition Left Bloc, which argued that the U.S. use of the base amounted to a “gross violation of international law.”

Under a longstanding agreement with the U.S., Washington can use Lajes without prior Portuguese authorization during peacetime, but Portugal's approval is required once hostilities begin.

Portugal, unlike neighboring Spain, authorized several U.S. transit flights through the base, prompting criticism from left-wing opposition parties and a political debate over Lisbon's role in operations linked to the conflict with Iran.

A U.S. Air Force Boeing KC-46A Pegasus refuelling aircraft upon take off on Lajes Portuguese Air Force Base, on the Portuguese Azores island, on June 21, 2025. (AFP Photo)
A U.S. Air Force Boeing KC-46A Pegasus refuelling aircraft upon take off on Lajes Portuguese Air Force Base, on the Portuguese Azores island, on June 21, 2025. (AFP Photo)

Prosecutors investigate as government defends decision

“The probe was opened following a complaint filed by members of the Left Bloc party,” Portugal's Prosecutor General's Office said, without providing further details.

The Left Bloc asked prosecutors in April to investigate the U.S. use of the Lajes base.

Portugal's Foreign Ministry declined to comment.

Foreign Minister Paulo Rangel has said Portugal was not involved in the conflict and maintained that the use of the base complied with international law.

He said authorization was granted only after Washington assured Lisbon that any operation would be defensive, necessary and proportionate, and limited to military targets.

Portuguese prosecutors operate under the principle of legality, meaning they are required to investigate alleged wrongdoing when sufficient grounds exist, unlike jurisdictions where prosecutors have broader discretion over whether a case should proceed.

Lajes serves as strategic US military transit hub

Lajes Air Base is located in Portugal's Atlantic Azores archipelago and serves as a strategic transit hub for U.S. forces.

Its role is governed by a bilateral defense treaty dating to 1951.

The base hosts the U.S. Air Force's 65th Air Base Wing and provides support for U.S., NATO and allied operations.

October 03, 2026 05:22 PM GMT+03:00
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