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Chagos Islands: Sovereignty

Asked by James CartlidgeConservativeMinistry of DefenceTabled Answered 20 June 2025UIN 59495

The question

To ask the Secretary of State for Defence, with reference to Annex 1, Clause 7, of the UK/Mauritius: Agreement concerning the Chagos Archipelago including Diego Garcia [CS Mauritius No.1/2025], which activities his Department considers risk conflicting with the obligations in Article 3(2)(b).

Answered by Luke Pollard

As set out in Annex 1, Clause 7 of the Treaty, the UK holds the right to notify Mauritius about any activity that is seen as potentially undermining, prejudicing or otherwise interfering with the long-term, secure and effective operation of the base on Diego Garcia. Mauritius would then commence a Security Review in respect of these activities . This means that the UK will have an effective veto over any activity that presents a clear and direct threat to the base on Diego Garcia. There is no limit to the scope of activities considered under this condition.

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