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Chagos Islands: Sovereignty

Question for Foreign, Commonwealth and Development Office

UIN 62576, tabled on 25 June 2025

To ask the Secretary of State for Foreign, Commonwealth and Development Affairs, with reference to the UK/Mauritius Agreement concerning the Chagos Archipelago (CS Mauritius No.1/2025), what assessment he has made of the potential risk of Mauritius initiating legal challenges in relation to activities (a) at and (b) from Diego Garcia under the provisions of Article 4 and Article 7 of that Treaty.

Answered on

1 July 2025

The Treaty explicitly grants all rights and authorities that the United Kingdom requires for the long-term, secure and effective operation of the Base. The United Kingdom will ensure all operations on Diego Garcia comply with its obligations under applicable international law.

Named day
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