In a significant geopolitical shift, UK Prime Minister Sir Keir Starmer has finalized a deal to transfer sovereignty over the Chagos Islands to Mauritius while retaining control of the strategic Diego Garcia military base under a 99-year lease, costing the UK approximately £101m annually.

The deal arises amidst heightened concerns over security, with Starmer asserting it is necessary for the UK’s national interests and vital to countering influences, particularly from China. The Conservative Party has criticized the agreement as detrimental to UK security and has expressed fears over potential Chinese military activities in the region following the transfer of sovereignty.

The agreement follows a recent legal challenge from Chagossian residents aimed at preserving their rights and potential claim to return to the islands, which were forcibly taken from them in the 1960s. This legal hurdle was dismissed shortly before the deal was signed, prompting statements of concern from advocates for the Chagossian community, who argue that they deserve a voice in the matter.

Moreover, Mauritius's Prime Minister, Navin Ramgoolam, has welcomed the transition as a substantial victory for his nation. He emphasized the importance of returning the islands to Mauritian sovereignty, while ensuring rights for Chagossian residents upon resettlement, although Diego Garcia remains excluded from resettlement projects due to its military significance.

Despite the government’s claims of the deal's strategic necessity, it has attracted bipartisan criticism within the UK, with several politicians questioning the wisdom of linking military operations with a nation increasingly aligned with China. Key figures from the opposition emphasize the need to prioritize UK interests over international obligations that may weaken the country’s defensive posture.

The agreement mandates a buffer zone around Diego Garcia, where construction and foreign military presence would require UK permission, while also offering provisions for a potential extension of the lease. The treaty is pending approval from respective parliaments in both the UK and Mauritius, setting the stage for potential debates over the sovereignty issue.

Despite the complexity surrounding the deal and its implications, the Chagossian community is divided on the outcome, with some expressing discontent at the lack of consultation and others celebrating the decision as a long-overdue return to their ancestral homeland.

The Chagos Archipelago's history is deeply intertwined with themes of displacement and colonialism, and as jurisdictions shift, the true impact on its original inhabitants remains to be fully seen.