Mauritius is intensifying its decades-long campaign to reclaim the Chagos Islands, framing the issue not only as a legal dispute but as an unfinished chapter of decolonization with far-reaching human, economic, and political consequences.
At the center of the dispute, is the separation of the Chagos Archipelago by the United Kingdom in 1965, three years before Mauritius gained independence. The islands were carved out to form the British Indian Ocean Territory, enabling the construction of a strategic military base on Diego Garcia in partnership with the United States. For Mauritius, that move remains a violation of international law and a fracture of its territorial integrity.
The human cost of that decision continues to reverberate. Between the late 1960s and early 1970s, thousands of Chagossians were forcibly removed from their homeland to make way for the base. Decades later, many still live in poverty in Mauritius and the Seychelles, cut off from ancestral land and identity. Recent attempts by some Chagossians to resettle parts of the archipelago without official approval, highlight the unresolved trauma; and the urgency of their demands for justice, compensation and the right of return.
Economically, control over the islands carries significant weight. The surrounding waters are rich in fisheries and may hold untapped marine and mineral resources. Regarding Mauritius, reclaiming sovereignty could strengthen its blue economy ambitions, and expand its exclusive economic zone. Yet delays in finalizing the transfer deal risk prolonging uncertainty, discouraging investment, and limiting the country’s ability to fully leverage these assets.
The political dimension is equally complex. A landmark 2019 advisory opinion by the International Court of Justice declared that the UK’s continued administration of the islands is unlawful, a position later reinforced by maritime rulings. In 2025, London agreed in principle to transfer sovereignty to Mauritius while leasing back Diego Garcia for military use. Though, the agreement has stalled amid domestic opposition in the UK and strategic concerns from Washington, particularly under Donald Trump, who has questioned the implications for regional security.
This geopolitical tug-of-war highlights the broader stakes: the Indian Ocean remains a critical theater for global military and trade routes. Any shift in control over Diego Garcia could recalibrate alliances and influence in the region, placing Mauritius at the center of a delicate balancing act between sovereignty and security partnerships.
Socially, the issue has become a defining national cause in Mauritius, symbolizing both historical injustice and aspirations for full independence. For many citizens, reclaiming the Chagos Islands is about restoring dignity as much as territory. Nevertheless, the terms of any final agreement, particularly restrictions on resettlement and the long-term lease of Diego Garcia, have sparked debate about whether true decolonization can coexist with continued foreign military presence.
Continue reading with Eandel
Subscribe to unlock the complete story and receive your subscriber benefits.
