The UK has signed a £3.4bn ($4.6bn) deal to hand over sovereignty of the Chagos Islands to Mauritius, while retaining control of a UK-US military base on Diego Garcia - the largest of the islands. Prime Minister Sir Keir Starmer says the 99-year agreement to lease back Diego Garcia will cost the UK £101m a year,

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Harriet Mathews, director general for Africa, the Americas and Overseas Territories at the Foreign Commonwealth and Development Office, told the High Court that the overnight injunction had "caused h...