UK to return Chagos Islands to Mauritius, ending years of dispute over military base and Britain’s last African colony

3 October 2024, 12:26

Diego Garcia Base, on the Chagos Islands
Diego Garcia Base, on the Chagos Islands. Picture: Alamy

By Christian Oliver

The UK will hand over sovereignty of the remote Chagos Islands to Mauritius after a decades-long dispute over the key military base and Britain’s last African colony.

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The deal to transfer the Indian Ocean archipelago's sovereignty to Mauritius will allow people expelled by the British Government decades ago to return home.

Chagossians were removed from the island in the 1960s and 1970s to make way for the military base, in what Human Rights Watch described as "crimes against humanity".

The deal still allows the UK to retain the long-term future of a strategically important joint US-UK military base on Diego Garcia, the largest of the islands.

The Foreign Office said the agreement is supported by the US and means the status of the base will be undisputed and legally secure.

Foreign Secretary David Lammy looks on as Prime Minister Sir Keir Starmer addresses the Security Council during the 79th United Nations General Assembly
Foreign Secretary David Lammy looks on as Prime Minister Sir Keir Starmer addresses the Security Council during the 79th United Nations General Assembly. Picture: Alamy

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The expulsions of Chagossians are regarded as one of the most shameful parts of Britain’s modern colonial history and Chagossians have spent decades fighting to return to the islands.

The United Nations’ International Court of Justice, previously ruled the UK’s administration of the territory was "unlawful" and must end.

Foreign Secretary David Lammy said: "This Government inherited a situation where the long-term, secure operation of the Diego Garcia military base was under threat, with contested sovereignty and ongoing legal challenges.

"Today’s agreement secures this vital military base for the future.“It will strengthen our role in safeguarding global security, shut down any possibility of the Indian Ocean being used as a dangerous illegal migration route to the UK, as well as guaranteeing our long-term relationship with Mauritius, a close Commonwealth partner.”

The agreement is still subject to a treaty and supporting legal instruments being finalised. Both sides have committed to complete the treaty as quickly as possible.

A Downing Street spokesman said Prime Minister Sir Keir Starmer spoke to his Mauritius counterpart, Pravind Jugnauth, on Thursday morning.

Rosemond Sameenaden, 70, joins other Chagos islanders outside the High Court, London
Rosemond Sameenaden, 70, joins other Chagos islanders outside the High Court, London. Picture: Alamy

The spokesman said: "The leaders began by welcoming the political agreement achieved today between the UK and Mauritius on the exercise of sovereignty over the Chagos archipelago after two years of negotiations.

"The Prime Minister reiterated the importance of reaching this deal to protect the continued operation of the UK/US military base on Diego Garcia.

"He underscored his steadfast duty to national and global security which underpinned the political agreement reached today.”

US President Joe Biden said the agreement "secures the effective operation" of the Diego Garcia military base.

He said: “I applaud the historic agreement and conclusion of the negotiations between the Republic of Mauritius and the United Kingdom on the status of the Chagos Archipelago.

"It is a clear demonstration that through diplomacy and partnership, countries can overcome long-standing historical challenges to reach peaceful and mutually beneficial outcomes."

He added: "Diego Garcia is the site of a joint US-UK military facility that plays a vital role in national, regional, and global security.

"It enables the United States to support operations that demonstrate our shared commitment to regional stability, provide rapid response to crises, and counter some of the most challenging security threats we face.

"The agreement secures the effective operation of the joint facility on Diego Garcia into the next century.”

Representatives of the Chagos Islands demonstrate in central London, May 2018
Representatives of the Chagos Islands demonstrate in central London, May 2018. Picture: Alamy

But the deal received scathing reactions from Tory leadership candidates.

Robert Jenrick said: "It’s taken three months for (Sir Keir) Starmer to surrender Britain’s strategic interests.

"This is a dangerous capitulation that will hand our territory to an ally of Beijing.”

James Cleverly, a former foreign secretary, criticised the British Indian Ocean Territory decision. He said: “Weak, weak, weak! Labour lied to get into office. Said they’d be whiter than white, said they wouldn’t put up taxes, said they’d stand up to the EU, said that they be patriotic. All lies!"

Fellow Tory leadership hopeful Tom Tugendhat said: "This is a shameful retreat undermining our security and leaving our allies exposed."

He said the Foreign Office had "negotiated against Britain’s interest" and it was "disgraceful that these negotiations started under our watch".

Mr Tugendhat added: "Lord Cameron rightly blocked them only to see it back under David Lammy’s complete failure of leadership."