The United States has begun using military bases in the United Kingdom for what British officials described as specific defensive operations aimed at preventing Iran from launching missiles into the region. The move follows an earlier refusal by Prime Minister Keir Starmer to take part in the joint United States and Israeli bombing campaign against Iran that began on February 28. Starmer later agreed to allow limited use of two bases, including one in southwestern England and the joint British American facility on the Chagos Islands.

The decision comes amid tensions between Starmer and President Donald Trump, who publicly criticized the British leader for not initially supporting the strikes. Trump suggested Britain’s military support was no longer necessary and mocked discussions about deploying British aircraft carriers. Britain is reportedly increasing the readiness of one carrier, though no final decision on deployment has been made.

The conflict has already affected British interests, with an Iranian drone striking a British base in Cyprus earlier in the week. Starmer defended his cautious approach, saying any involvement must have a lawful basis and a clear plan, while arguing that Iran’s retaliation now threatens British allies and assets. Public opinion polling indicates a majority of Britons supported his initial decision to stay out of the offensive, as protests against the war took place in London.