The United Kingdom and Mauritius announced a deal to transfer sovereignty of the Chagos Islands to Mauritius while preserving the U.S.-UK military base on Diego Garcia for an initial 99-year period. The agreement, presented in a joint statement by the two prime ministers, ended decades of sometimes bitter negotiations over one of the Indian Ocean's most contested archipelagos.
The core of the arrangement was straightforward but politically charged. Britain would give up its claim to the islands, including Diego Garcia, while Mauritius would regain sovereignty and begin a resettlement program on parts of the archipelago. The base itself would remain in place, because both sides said its long-term secure operation was essential to regional and global security. The deal was not yet a final treaty, but both governments said they intended to complete that process quickly.
BBC reporting said the announcement followed years of diplomatic isolation for the UK, as United Nations bodies increasingly sided with Mauritius and demanded that Britain end what many critics described as its last colony in Africa. The report also noted that Britain had apologized in the past for forcibly removing more than 1,000 islanders from the archipelago. That history made the announcement more than a territorial transfer; it was an attempt to settle a long colonial dispute while preserving a strategic military facility used by the United States.
The agreement's supporters framed it as a practical and lawful compromise. Keir Starmer and Mauritius Prime Minister Pravind Jugnauth described the announcement as a seminal moment and a demonstration of commitment to peaceful dispute resolution and the rule of law. US President Joe Biden welcomed the move as a historic agreement that secured the future of a key military base. UK Foreign Secretary David Lammy said the arrangement would also help close a potential illegal migration route.
But the deal did not resolve every concern. BBC reporting said Chagossians were divided over the outcome: some welcomed the possibility of returning to the islands, while others felt betrayed because they had not been meaningfully included in the talks. One Chagossian interviewed by the BBC called for the full inclusion of islanders in drafting the treaty. Human Rights Watch, meanwhile, warned that the arrangement could continue the wrongs of the past if the people most affected were not properly consulted.
The announcement mattered beyond the islands themselves because it touched the rivalry among Western countries, India and China in the Indian Ocean. The Diego Garcia base remained the strategic hinge that made the deal possible. By separating sovereignty from military access, London and Port Louis tried to resolve one of Britain's most enduring decolonization disputes without surrendering a site central to U.S. security planning. Whether that compromise would satisfy islanders, lawmakers and international critics was still an open question after the announcement, but the diplomatic shift was unmistakable.
