Trump Criticizes Chagos Islands Transfer as UK Announces

President Donald Trump used a United Nations General Assembly side meeting in New York to commend newly sworn‑in British Prime Minister Andy Burnham as a "natural businessperson" and a "great" leader. He then called the United Kingdom’s proposal to hand over sovereignty of the Chagos Islands transfer to Mauritius "terrible."

The UK has announced it will transfer the Chagos Islands to Mauritius while keeping a lease on the U.S.‑run Diego Garcia base. Details of the leaseback, including its duration, remain under negotiation. The timing of the announcement – weeks after Burnham took office in early September – places the deal at the centre of broader talks on trade, defence contracts and immigration that featured in the New York meeting, according to the BBC and The Guardian.

Trump’s endorsement of Burnham focused on the new premier’s business record, noting his extensive assets and suggesting a market‑oriented government could benefit the United Kingdom. By labeling the Chagos Islands transfer "terrible," Trump signalled displeasure with a move that could affect the strategic posture of the U.S.‑led Indian Ocean command centred on Diego Garcia. No policy shift was announced, and the UK has not issued an official response.

The stakes are multi‑layered. Defence contractors such as Rolls‑Royce could see contracts tied to the base’s infrastructure altered if lease terms change. The United States relies on Diego Garcia for surveillance, logistics and power projection across the Indian Ocean and may seek assurances that the lease remains stable. Mauritius views the sovereignty transfer as a step toward resolving a decades‑old decolonisation dispute, while the Chagossian diaspora continues to press for the right of return.

Burnham’s early statements outline a policy agenda that includes deregulation, expanded trade incentives and a review of defence procurement processes. A more business‑friendly approach could lower barriers for UK firms and deepen collaboration with U.S. partners. His willingness to engage on immigration and energy issues suggests a broader recalibration of the bilateral relationship beyond the Chagos Islands transfer.

Analysts say Trump’s public criticism could influence the United Kingdom’s negotiating posture. Although the handover is a UK‑Mauritius matter, U.S. sentiment – especially from a president who frames foreign policy in commercial terms – may be factored into the final agreement. The lack of an immediate policy announcement indicates both sides are likely to keep negotiations confidential while testing political reactions.

The next steps remain uncertain. The UK is expected to present a detailed lease‑back proposal to Mauritius within weeks, after which parliamentary scrutiny and diplomatic briefings in Washington are likely. Observers will watch for formal comments from the U.S. State Department or the Department of Defense that could clarify how the United States intends to safeguard its operational interests on Diego Garcia. Until such statements emerge, the balance between a business‑focused British government and a U.S. administration skeptical of the Chagos Islands transfer will remain a key variable in the evolving UK‑US partnership.