Diego Garcia Military Base and British Indian Ocean Territory Bill

Debate between Priti Patel and Alex Ballinger

2nd reading
Tuesday 9th September 2025 Commons Chamber

[Priti Patel]

Absolutely right. Of course, this Government do not like speaking about inflation for all the macro-economic reasons we know about. Inflation under this Government continues to rise, which speaks volumes about their handling of the economy.

This deal is so bad for Britain, it has left our country humiliated and weaker on the world stage. Our friends and enemies alike are laughing at the UK and Labour’s epic diplomatic failure to stand up for our national interests.

[Alex Ballinger]

The right hon. Lady says that this is an international problem for the UK, but does she not agree that the Americans, the Canadians, the New Zealanders, the Australians, the Indians and even the Pope support the deal? It is really important that our Five Eyes security partners are behind us.

[Priti Patel]

Having led Five Eyes for our country—I am very proud to have done so—it is a matter of great concern that the deal has been backed by Iran, China and Russia. I say to the hon. Gentleman that that is exactly why this is a bad deal for our country. [Interruption.] It is correct, actually, and I can point him to the references where those countries have spoken in favour of the deal.

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[Priti Patel]

I will give way once again to the hon. Member for Halesowen (Alex Ballinger).

[Alex Ballinger]

Could the right hon. Lady outline what was in the deal that the last Conservative Foreign Secretary was negotiating? The points of sovereignty and everything else were conceded by her party.

[Priti Patel]

I will now give way to the hon. Member for Kilmarnock and Loudoun (Lillian Jones).

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[Priti Patel]

The hon. Member, who was laughing and sneering at fellow colleagues earlier—that is simply not acceptable—should have listened to what I said. I will restate it for the House: there was no deal done whatsoever.

[Alex Ballinger]

Will the right hon. Member give way?

[Priti Patel]

I will not. As we have already heard from Conservative Members, we have rarely seen the methodology that the Government are now hiding behind used for any spending announcements. When the Minister winds up, I wonder if he will commit to presenting all future spending decisions using this methodology—or perhaps he could explain why the Government have singled out this large and embarrassing expenditure to be formulated in this way. That is down to the fact that they are covering up a colossal cost.

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[Priti Patel]

I am going to make progress, and I have taken plenty of interventions.

The Minister touched on the base at Diego Garcia, which is one of the most important military assets in the world. It gives us and our US allies significant global reach, but the treaty undermines that position, and the Bill contains no measures to mitigate its effects.

[Alex Ballinger]

Will the right hon. Member give way?

[Priti Patel]

I will not; I have given way plenty of times to the hon. Gentleman.

The surrender of sovereignty means that Britian will be a rule taker, taking the laws, rules and commands of Mauritius, and that restricts and impedes base operations. For example, Mauritius has signed up to the Pelindaba treaty, banning the stationing and storage of nuclear weapons; no Minister has been able to provide a definitive answer when questioned about how that may impact our security and defence, once the UK is no longer sovereign in, or able to exercise sovereign rights over, the Chagos islands and Diego Garcia.

Under the terms of the treaty, we are bound to notify Mauritius of various activities relating to our use of the base, including operations from the base against that country, and movements of our allies’ vessels. Despite heavy questioning, at no point have Ministers explained in detail how the notifications will work, and who will have access to the information.

[Priti Patel]

The hon. and learned Member is absolutely right. That is why it was important to have a debate on the Floor of the House when the treaty came together, but we did not have one. The treaty brings into question everything about security, including our ability to be as strong and secure as we need to be.

It will come as no surprise to Members to hear that now that our sovereignty over the base is being surrendered, our enemies are queuing up to—guess what?—make friends with Mauritius. Just days before the surrender treaty was signed, Russia agreed a new partnership agreement with Mauritius that includes marine research. That so-called “marine research” conducted by Russia could take place just a handful of miles away from our base. Mauritius has also been courted extensively by Iran and China for further partnerships in a range of other areas. Despite the warnings, this inept Labour Government have failed to act to safeguard our interests.

[Alex Ballinger]

Will the right hon. Member give way?

[Priti Patel]

No, I have given way to the hon. Gentleman many times.