Chagos Talks: Trump Holds Firm Against Deal as UK Leaves Door Open

The diplomatic tug-of-war over the Chagos Islands continues, with the United States holding firm in its opposition to the sovereignty deal between Mauritius and the United Kingdom, even as London appears to be leaving some room for further discussion. The Trump administration has not softened its stance against the agreement, which would see the UK cede sovereignty of the Chagos Archipelago — including Diego Garcia, home to a strategically critical joint US-UK military base — to Mauritius. Washington has consistently argued that handing control of the islands to Mauritius poses an unacceptable risk to Western security interests, particularly given concerns about Chinese influence in the Indian Ocean region. Despite this pressure, the British government has stopped short of declaring the deal dead. Senior figures in London have indicated that diplomatic channels remain open, suggesting the UK is unwilling to fully abandon an agreement that was years in the making and has significant legal and political implications for both countries. **Background: What Is the Chagos Deal?** The Chagos Islands, a British Indian Ocean Territory, were separated from Mauritius in 1965 — three years before Mauritius gained independence — in a move later ruled unlawful by an advisory opinion of the International Court of Justice in 2019. Mauritius has long claimed sovereignty over the archipelago. In October 2024, the UK and Mauritius announced a landmark agreement in principle under which Britain would transfer sovereignty of the islands to Mauritius, while retaining a 99-year lease over Diego Garcia to maintain the military base. The deal was hailed as a historic resolution to a decades-long dispute. However, when Donald Trump returned to the White House in January 2025, his administration moved quickly to oppose the agreement, with Secretary of State Marco Rubio and other officials publicly questioning whether the deal served US interests. **What This Means** For Mauritius, the situation remains uncertain. The government in Port Louis has staked significant political capital on securing formal recognition of its sovereignty over Chagos. A collapse of the deal — or a prolonged renegotiation under US pressure — would be a major setback. For the UK, the balancing act is delicate: honouring an international agreement it signed while managing its close alliance with the United States under the Trump administration. For the US, the Diego Garcia base is a cornerstone of military operations across the Middle East and Indo-Pacific, and Washington wants to ensure its long-term access is not complicated by a change in sovereignty. The coming weeks are likely to be decisive. Whether London moves toward formal ratification, reopens negotiations, or lets the deal quietly stall will have lasting consequences for Mauritian sovereignty, regional geopolitics, and international law. Source: Le Défi Media