Four British Chagossians Return to Islands as They Reject UK Plan to Hand Territory Away

Four British Chagossians have travelled to the Chagos Archipelago in a move challenging the UK government's planned transfer of sovereignty to Mauritius, drawing renewed attention to the long-running dispute over displacement and the islanders' right of return.

The group landed on Île du Coin, part of the remote Indian Ocean territory, describing the journey as an attempt to reassert claims to ancestral land. UK officials have characterised the landing as unlawful, while Mauritian authorities have also questioned its legality.

The development highlights continuing tensions surrounding the Chagos Islands, where questions of sovereignty, historical displacement and legal rights remain politically sensitive decades after the removal of the original inhabitants.

Historic Displacement and Sovereignty Dispute

The Chagos Archipelago was home to a Creole-speaking community until the late 1960s and early 1970s, when the UK removed residents to facilitate the establishment of a US military base on Diego Garcia.

Since then, Chagossians and their descendants have pursued legal and political efforts seeking recognition, compensation and the right to return. The issue has remained the subject of court cases, international rulings and diplomatic negotiations.

In 2025, the UK and Mauritius signed an agreement to transfer sovereignty of the Chagos Islands to Mauritius. Under the arrangement, the UK will continue operating the Diego Garcia military facility through a long-term lease.

The agreement was presented by the British government as consistent with international legal advice on decolonisation. However, some Chagossian groups have argued that the deal does not sufficiently address their claims or future status.

Return to Île du Coin

On 16 February 2026, four Chagossians travelled to Île du Coin, stating that they intended to establish a presence on the islands.

Among them was Misley Mandarin, who has been associated with Chagossian advocacy initiatives. The group said the return was intended to highlight concerns over the sovereignty agreement and the rights of displaced islanders.

Mauritian officials described the landing as unlawful, while the UK Foreign Office said unauthorised travel to the territory raised safety and legal concerns, according to The Guardian. Authorities stressed that the incident posed no threat to operations on Diego Garcia.

Competing Claims Over Rights and Representation

Debate surrounding the sovereignty agreement has extended beyond governments. Chagossian organisations have expressed differing views on how the transfer may affect resettlement prospects, citizenship issues and long-term recognition.

A United Nations advisory body previously urged the UK to ensure that arrangements involving the islands reflected the interests and rights of the displaced population. Campaign groups have continued to argue for clearer guarantees on return and cultural preservation.

Governments have maintained that negotiations sought to balance historical considerations with legal and strategic realities.

Strategic and Geopolitical Context

Diego Garcia remains central to the dispute. The joint UK-US military facility plays a significant role in regional security operations, supporting naval and air deployments across the Indian Ocean and beyond.

The sovereignty agreement preserves the UK's operational role at the base, though the broader territorial transfer has attracted international scrutiny.

Analysts note that the Chagos issue sits at the intersection of decolonisation debates, defence interests and longstanding legal challenges.

Continuing Legal and Political Debate

The landing on Île du Coin is unlikely to alter the immediate trajectory of the transfer framework. However, it reflects the persistence of unresolved concerns among sections of the Chagossian community.

Disputes involving the islands have continued to surface through courts, diplomatic channels and advocacy campaigns. While governments focus on implementing the agreement, debates over displacement, recognition and return remain active.