Chagos Deal at a Crossroads as UK Eyes Greenland Model

The 2025 agreement between the United Kingdom and Mauritius over the Chagos Archipelago is facing fresh uncertainty, as London considers reshaping the deal along the lines of a so-called Greenland model to address American strategic concerns about the Diego Garcia military base.

The Chagos Archipelago is a group of islands in the Indian Ocean that Mauritius has long claimed as its own territory. The largest island, Diego Garcia, hosts a major joint UK-US military base that Washington considers critical to its Indo-Pacific operations. After years of legal disputes and international pressure, the UK and Mauritius reached a landmark sovereignty agreement in 2025, under which Mauritius would gain formal sovereignty over the islands while the UK, backed by the US, would retain rights to operate the military base for a fixed period.

The reference to a Greenland model reflects the broader geopolitical context. Greenland, an autonomous territory of Denmark, has become a focal point of renewed US strategic interest, with Washington pushing for greater influence or even control over the island for security reasons. Some British officials are reportedly looking at how a comparable arrangement, one that places greater emphasis on US operational freedom, could be applied to Diego Garcia without formally abandoning the Mauritius deal.

For Mauritius, the stakes are significant. The government in Port Louis has invested years of diplomatic effort into securing recognition of its sovereignty over the Chagos islands, a position backed by a 2019 advisory opinion from the International Court of Justice and a United Nations General Assembly resolution. The 2025 agreement also included substantial financial compensation for Mauritius, as well as provisions related to the Chagossian community, descendants of the people forcibly removed from the islands in the 1960s and 1970s to make way for the military base.

Mauritian officials are signalling that they intend to hold firm on the core elements of the deal. These include formal recognition of Mauritian sovereignty, the agreed financial package, and rights connected to the Chagossian diaspora, many of whom live in Mauritius and the UK.

The situation places the UK in a difficult position. London must balance its obligations under the 2025 agreement with pressure from Washington, which has historically been cautious about any arrangement that could limit US military flexibility at Diego Garcia.

What this means: For Mauritius, the Chagos agreement is not just a matter of territory. It represents a historic legal and diplomatic victory, as well as a source of significant revenue and national identity. Any renegotiation that weakens Mauritian sovereignty or reduces the financial terms would be politically sensitive at home and could damage trust in future diplomatic engagements. The coming months are likely to see intense behind-the-scenes negotiations between Port Louis, London and Washington.

Source: Le Defi Media