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Diego Garcia Military Base and British Indian Ocean Territory Bill 2025-10-20

20 October 2025

Lead MP

Wendy Morton

Debate Type

General Debate

Tags

ClimateForeign Affairs
Other Contributors: 64

At a Glance

Wendy Morton raised concerns about diego garcia military base and british indian ocean territory bill 2025-10-20 in the House of Commons. A government minister responded. Other MPs also contributed.

How the Debate Unfolded

MPs spoke in turn to share their views and ask questions. Here's what each person said:

Lead Contributor

Opened the debate
I beg to move amendment 1, page 1, line 7, leave out subsection (2) and insert—(1A) The Treaty and sections 2 to 4 of this Act do not come into force until the duties outlined in section [The additional period and right to extend: duty to publish legal advice and risk assessments] are discharged. This amendment together with NC2 would prevent the Treaty from coming into force until the Government has published any legal advice or risk assessments regarding the UK’s ability to extend its rights over Diego Garcia after the initial period specified in the Treaty.

Government Response

ClimateForeign Affairs
Government Response
The Minister asserts that the treaty protects security in the Chagos archipelago and prohibits foreign forces from building bases on outer islands. He challenges the shadow minister to provide evidence for her claims. The Minister defended the treaty as crucial to protecting national security, backed by key allies including the US. He rebutted criticisms about costs and conspiracy theories, stating that previous governments started negotiations. The treaty secures operational control of Diego Garcia with robust security provisions banning foreign forces. The treaty's costs have been published using a methodological approach approved by several bodies. He defended the cost as reasonable compared to similar deals and highlighted its strategic importance for national security, while addressing concerns about sovereignty, consultations with Chagossians, environmental protection, and legal risks. Defends the Bill as crucial for Britain's security by securing military base operations on Diego Garcia. Acknowledges contributions from both sides of House, thanks International Agreements Committee and International Relations and Defence Committee, and expresses gratitude to US allies for support in treaty negotiations. Emphasises that adversaries would have wanted this deal to fail.
Assessment & feedback
Summary accuracy

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