A new report suggests a growing rift between Washington and London as the United Kingdom’s government moves to block President Donald Trump from using British military air bases for a potential strike on Iran — citing concerns that such action could violate international law and implicate Britain in a broader conflict.
According to the Times of London, the White House has been developing contingency plans for possible military action against Iran if negotiations over Tehran’s nuclear program collapse.
Central to those plans is the use of Royal Air Force (RAF) Fairford in England, a forward operating base that has historically supported U.S. heavy bombers. The strategically vital base at Diego Garcia in the Indian Ocean — part of the Chagos Islands — is also reportedly under consideration.
Trump is said to have discussed the matter with UK Prime Minister Keir Starmer during a phone call Tuesday night. British officials, however, reportedly fear that granting permission for U.S. forces to launch strikes from UK soil could breach international law, placing the British government in a legally and politically precarious position.
The president publicly referenced both RAF Fairford and Diego Garcia in a Truth Social post, arguing the facilities could be necessary if Iran refuses to reach a nuclear agreement. He warned of what he described as a “highly unstable and dangerous Regime,” claiming military readiness would be essential to prevent potential threats to the UK and other allied nations.
The dispute appears to have reverberated beyond immediate military planning. Britain’s hesitation is reportedly influencing Trump’s stance on a separate but strategically linked issue: the future of the Chagos Islands. The UK is negotiating a deal to transfer sovereignty of the islands to Mauritius while retaining control of Diego Garcia through a 99-year lease agreement.
Initially, Trump had described the arrangement as favorable for Britain, and the U.S. State Department signaled support. But following his reported conversation with Starmer, the president withdrew that backing. In a subsequent statement, Trump urged the prime minister not to “lose control” of Diego Garcia, warning that surrendering sovereignty could weaken a key ally’s strategic posture.
The Chagos Archipelago, comprising roughly 60 islands about 1,500 miles south of India, has been under British control since 1814. Its location offers Diego Garcia unique strategic value for operations spanning the Middle East and South Asia. The base has long served as one of the United States’ most distant yet critical military outposts.
Prime Minister Starmer, leader of the Labour Party, now faces mounting political pressure at home and abroad. With historically low approval ratings and a divided Parliament, securing support for the Chagos agreement may prove challenging — particularly without firm U.S. endorsement.
