
UK-Mauritius Chagos sovereignty deal stalls amid fears of further delays
”Signed on May 22, 2025, the treaty provides for Mauritius to exercise sovereignty over the Chagos archipelago, while allowing the UK to exercise rights over the Diego Garcia military base for an initial 99-year period.
Lindsey Collen of Lalit says the treaty, as it stood in April, would have kept the base open and brought Mauritius into a closer relationship with the US military presence on the island.“We’ve had the 2019 ICJ [International Court of Justice] advisory opinion, the International Tribunal for the Law of the Sea’s 2021 judgement, and the 2025 UK-Mauritius treaty providing for Mauritius to exercise sovereignty over the archipelago.
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