Mauritius Challenges UK Over Chagos Islands Deal and Diego Garcia Base Lease

December 22, 2024
1 min read
Representative Image. Vacoas-Phoenix, Mauritius. Photo Source: Arne Müseler (CC BY-SA 3.0)
Representative Image. Vacoas-Phoenix, Mauritius. Photo Source: Arne Müseler (CC BY-SA 3.0)

The UK-Mauritius negotiations over the Chagos Islands continue as Mauritius’s new Prime Minister Navinchandra Ramgoolam seeks revisions to the October agreement. This development adds another chapter to the ongoing discussions over the archipelago’s sovereignty, while raising questions about regional security and international diplomatic relations.

The Current State of Affairs

“Mauritius made clear that, while it is still willing to conclude an agreement with the United Kingdom, the draft agreement which was shown to us after the general elections is one which, in our view, would not produce the benefits that the nation could expect from such an agreement,” Ramgoolam stated in his address to the Mauritian parliament.

The initial agreement proposed the UK’s transfer of sovereignty to Mauritius while maintaining a 99-year lease over Diego Garcia, home to a crucial UK-US military installation. The base, positioned 2,100 kilometers southwest of Mauritius, houses 2,500 predominantly American personnel.

Political Implications

Conservative opposition in the UK has voiced strong reservations. Shadow Foreign Secretary Dame Priti Patel termed it a “monumental failure of statecraft” and questioned the operational autonomy of the base under the new arrangement.

Foreign Office Minister Stephen Doughty defended the government’s position: “It protects the base at proportionate cost. It has been supported across the national security architecture in the United States and by India.”

International Dimensions

The agreement faces scrutiny from the incoming Trump administration. Reform UK leader Nigel Farage, following discussions at Mar-a-Lago, reported “very deep disquiet amongst all of them as to what this may mean for the long-term future of Diego Garcia and whether such deal would hold, given the precedent of the deal break over Hong Kong.”

Marco Rubio, Trump’s pick for secretary of state, warned the agreement posed “a serious threat” to US national security, citing concerns about Chinese influence in the region.

Historical Context

The Chagos Islands, under British control since 1814, became a focal point of controversy when the UK forcibly relocated more than 1,000 islanders in the 1960s and 1970s to facilitate the construction of the Diego Garcia military base. The US acknowledged in 2008 that the base had been used for clandestine rendition flights of terror suspects.


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Legal Framework

The UK faces mounting international pressure, with the International Court of Justice and UN General Assembly supporting Mauritius’s sovereignty claim. Mauritius contends it was compelled to surrender the islands in exchange for independence in 1968, following a confidential UK-US military base agreement.

Future Considerations

As negotiations continue, several key aspects remain under discussion:

  • The terms of the military base lease arrangement
  • The operational framework for Diego Garcia
  • The British government’s commitment to addressing Mauritian concerns
  • The discussions with international partners
  • The arrangements for the Chagossian community

The UK government maintains its commitment to finalizing the agreement while addressing the new Mauritian administration’s concerns. However, the intersection of international law, military strategy, and regional geopolitics continues to shape this evolving diplomatic process.

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