Chagos Islands: Sovereignty

(asked on 26th February 2026) - View Source

Question to the Foreign, Commonwealth & Development Office:

To ask His Majesty's Government what assessment they have made of the extent to which the proposed transfer of the Chagos Archipelago might weaken the United Kingdom’s capacity to meet its obligations under the Paris Agreement to protect climate vulnerable ecosystems such as coral reefs.


Answered by
Baroness Chapman of Darlington Portrait
Baroness Chapman of Darlington
Minister of State (Development)
This question was answered on 9th March 2026

The UK Overseas Territories biodiversity strategy, last updated on 12 January, details the importance of the Chagos Archipelago in supporting the healthiest, best managed large ecosystem complex in the Indian ocean, and confirms that - after the UK-Mauritius treaty comes into force - we will support the Mauritian Government in an enhanced partnership to ensure the future protection of that unique environment. As discussed at length during the debates on the Diego Garcia Military Base and British Indian Ocean Territory Bill, the treaty is entirely compatible with the UK's other environmental commitments and obligations.

Reticulating Splines