In a significant diplomatic move, the UK has agreed to transfer sovereignty of the Chagos Islands to Mauritius, marking the end of a decades-long territorial dispute. This agreement, announced by British Foreign Secretary David Lammy, ensures that the UK will retain control over Diego Garcia, the largest of the Chagos Islands, for the next 99 years, securing the future of a strategically crucial military base used by both the UK and the United States.
The Chagos Archipelago, a collection of over 60 islands in the Indian Ocean, has long been a contentious issue. Britain detached the islands from Mauritius in 1965, three years before Mauritius gained independence. Since then, the islands have been part of the British Indian Ocean Territory. However, the sovereignty of the archipelago has been frequently challenged in international courts.
The new agreement aims to resolve this issue once and for all. Under the terms of the deal, while Mauritius will formally hold sovereignty over the Chagos Islands, the UK will retain operational control of Diego Garcia for an initial 99-year period. Diego Garcia, home to a large US military base built in the 1970s, is critical for security operations in regions such as the Middle East, South Asia, and East Africa.
For both the UK and the US, this deal is essential in maintaining stability in the region. Without it, the operation of the military base could have been jeopardized by legal disputes over the sovereignty of the islands. The base at Diego Garcia is regarded as indispensable by the US military, playing a pivotal role in American security strategy.
“This agreement strengthens our position in global security while reinforcing our relationship with Mauritius, a close Commonwealth partner,” said Lammy. He also emphasized that the agreement would block any potential misuse of the Indian Ocean as a route for illegal migration to the UK.
The US also welcomed the agreement, with President Joe Biden hailing it as a "historic" moment. The White House underscored the importance of Diego Garcia in maintaining "national, regional, and global security."
One unresolved issue is the fate of the former inhabitants of the Chagos Islands. Approximately 1,500 Chagossians were forcibly removed from the islands in the 1960s and 70s to clear the way for the US base, and many of their descendants now live in the UK, Mauritius, and the Seychelles. The agreement does not yet clarify whether these individuals will be allowed to return to their homeland, a matter that will likely come to the forefront as the deal is finalized.
The deal, while historic, still requires formal ratification in the form of a treaty, and legal processes are ongoing. Both the UK and Mauritius are committed to expediting these procedures.
The transfer of the Chagos Islands, particularly the arrangements concerning Diego Garcia, represents a delicate balance between settling a colonial-era grievance and preserving the vital security interests of the UK, the US, and their allies. It stands as a significant example of diplomacy adapting to modern geopolitical realities while addressing long-standing historical issues.
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