There has long been an understanding within the British establishment that the Chagossians who were forcibly evicted from their homes to make way for a military base on Diego Garcia were treated unfairly.

Human rights groups have demanded reparations and resettlement, while Britain’s moral case for its control over the islands has dwindled on the international stage.

In 2019 the UN’s top court and the general assembly demanded Britain surrender sovereignty, urging the country to “complete the decolonisation process.”

Two years later the International Court of Justice ruling also sided with Mauritius.

At first, Britain defied the ruling, calling it an “advisory opinion” but negotiations began under Liz Truss‘s Conservative government.

That process has now concluded.

Jonathan Powell, the envoy who helped secure the sovereignty deal, said the Chagossians were treated “shamefully” when they were removed from the islands.

Mauritius will now be free to resettle Chagossians, some of whom now live in Britain.

However, no resettlement will take place on Diego Garcia, where the military base will remain on a 99-year-long lease.

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Chagossians have long questioned why the presence of a military base prevents them from living on the Island. The remaining Islands are far less habitable, without the same levels of infrastructure.

It’s not a given that anyone will move back.

Mr Powell said: “Going back to the islands … it’s going to be difficult. They’re very remote and very hard to live on, and the life there before was very difficult.

“But yes, we are committing ourselves to helping on visits, and we’re committing to a fund to help on resettlement, if that’s possible.”