The UK has rejected a request from the United States to use British air bases for potential strikes on Iran. The decision places Prime Minister Keri Starmer at the centre of a tense moment in the transatlantic alliance.

US President Donald Trump had sought access to RAF bases for what he described as pre-emptive action against Iran. London declined, citing concerns that such action could breach international law.

British officials made clear that any use of UK territory must comply with international legal obligations and domestic law. The report said ministers were wary of being drawn into a conflict without clear legal grounds.

Discussions included the possible use of British-controlled facilities, including the RAF Fairford in England and Diego Garcia, the British overseas territory in the Indian Ocean that is a major airfield for American heavy bomber fleet. But the government signalled that approval would not be automatic. The refusal reflects deep caution inside Whitehall about escalation in the Middle East.

Starmer has not publicly criticised Trump. However, he stressed that the UK must act within the law, saying allowing access 'would be a breach of international law, which makes no distinction between a state carrying out the attach and those in support.'

Since granting the request of the US would suggest 'knowledge of the circumstances of the internationally wrongful act,' the British officials chose to reject the access to its airbases to avoid steps that could undermine global stability.

The UK hosts several RAF bases that are critical to joint operations with the United States. Access to those bases has long symbolised close defence ties.

Yet, asCNNreported, British officials are concerned that a pre-emptive strike without broad international backing could expose the UK to legal challenges. That includes potential claims that Britain facilitated unlawful military action.

Starmer's stance signals a shift in tone. Rather than automatic alignment with Washington, the prime minister appears focused on legal clarity and parliamentary scrutiny.

Tensions around the Chagos Islands deal and broader strategic interests have already complicated relations,The Timesof London noted. Blocking base access adds another layer of strain.

Source: International Business Times UK