The UK has begun reviewing the agreement to transfer sovereignty over the Chagos Islands to Mauritius. The reason was fresh statements by US President Donald Trump.
Defence Secretary Wes Streeting confirmed that the deal concluded under the current prime minister Keir Starmer now requires revision. Trump called it "terrible" during his speech at the UN General Assembly on Tuesday.
Under the terms of the agreement, London transfers sovereignty over the archipelago to Mauritius but retains control over the joint military base with the US on the island of Diego Garcia. The lease of the base will cost an average of £101 million per year for 99 years.
The deal had already been suspended in April 2026 after Trump withdrew support. Now Streeting stressed: without Washington's approval, the agreement cannot enter into force.
The new prime minister Andy Burnham met with Trump on the sidelines of the UN General Assembly. The American leader repeated his criticism, and the British side decided not to ignore the ally's position.
Streeting stated that the government will focus on ensuring long-term confidence in the operation of the Diego Garcia base. Payments to Mauritius have been suspended at this stage.
The strategic importance of the base in the Indian Ocean remains a key factor for London and Washington.
Critics of the deal in the UK had previously pointed to possible risks, including potential Chinese influence in the region. Now the review provides a chance to take American concerns into account.
Streeting noted that Trump's comments were not news, but they gave Washington's position complete clarity. Work with the US administration will continue in order to find an acceptable option.
