Full Breakdown
UK Reviews Chagos Islands Sovereignty Deal After US Opposition
By Drooid · · How we work
Core Event: Review Triggered by US President’s Opposition
UK Defence Secretary Wes Streeting announced that the government will review the agreement to transfer sovereignty of the Chagos Islands to Mauritius after US President Donald Trump called the deal “terrible” in a meeting with Prime Minister Andy Burnham at the UN General Assembly.
Background & Context
- The Chagos archipelago was detached from Mauritius in 1965 and has been administered by the UK as the British Indian Ocean Territory.
- An International Court of Justice advisory opinion in 2019 urged the UK to end its administration.
- Negotiations began in 2022 and led to a signed agreement in 2025 that would cede sovereignty to Mauritius while the UK kept the joint UK-US military base on Diego Garcia under a 99-year lease.
Data & Statistics
- The agreement stipulated an average annual payment of £101 million to Mauritius for the lease.
- A net overall cost to the UK was projected at £3.4 billion, with opponents warning it could rise to £35 billion after inflation.
Official Statements & Responses
- Trump labeled the agreement “terrible” and said he does not support it in its current form.
Criticism & Opposition
- Nigel Farage, Reform UK leader, declared “The Chagos deal is dead. Thank God.”
- Dan Carden, former Blue Labour chair, called the deal “disastrous” and urged Labour MPs to explain it to constituents.
- James Cartlidge, Conservative defence spokesperson, argued the deal should be scrapped and the money redirected to UK troops.
Verbatim Quotes
- “So we have to do more work with our American allies, with President Trump and his administration, to get the deal to a place where he can support it.” — Wes Streeting
- “The Chagos deal is dead. Thank God.” — Nigel Farage
- “I don't support it. I think it's terrible. It was a terrible deal.” — Donald Trump
Conflicting Reports & Gaps
- Payment figures vary: some sources cite £101 million per year, others £120 million after the first three years, and £165 million for the initial three-year period.
- The total projected cost is reported as £3.4 billion, while opponents claim it could reach £35 billion with inflation.
- The agreement has not completed the parliamentary process required for ratification, leaving its legal status uncertain.
What's Next
The UK government said the review has no fixed timetable. An update is scheduled for September 23 2026, when officials will outline next steps toward securing US support or revising the terms.