Diego Garcia Military Base and British Indian Ocean Territory Bill

Graham Stuart Excerpts

Tuesday 20th January 2026 Commons Chamber

[Sir John Hayes (South Holland and The Deepings) (Con)]

rose—

[Graham Stuart (Beverley and Holderness) (Con)]

rose—

[Stephen Doughty]

I give way on this issue to the right hon. Member for South Holland and The Deepings (Sir John Hayes).

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[Stephen Doughty]

Thank you for clarifying that, Madam Deputy Speaker.

In parallel with the other measures, we have established a contact group to give Chagossians a greater say in UK Government support to their communities and we are in the process of enhancing that group, as Baroness Chapman committed to do in the other place. Thanks to the work we have done and the reasonable concerns raised across the House, the Chagossian trust fund will be operated for Chagossians by Chagossians. There will be a Chagossian majority on the board, which will include a UK-based representative and a Chagossian chair. Those reasonable concerns have been raised in the course of the debates and we are trying to address them.

[Graham Stuart]

rose—

[Jeremy Corbyn (Islington North) (Ind)]

rose—

[Stephen Doughty]

I need to make progress, as Madam Deputy Speaker has asked me to be conscious of time. I will come back for further interventions.

Before moving on to discuss the specific amendments, I express my thanks to the noble Lords for their tireless efforts and to the many noble peers who scrutinised and supported the Bill. Lords amendment 4 was tabled by the Government, and I thank Lord Lansley for his helpful conversation and collaboration on the topic. The amendment will change the parliamentary procedure applicable to the delegated power in clause 6. With that amendment, all instruments made using that power will be subject to the negative procedure. Previously, no parliamentary procedure applied unless the power was used to amend, repeal or revoke Acts of Parliament or statutory instruments made under them. The amendment makes it clear that the Government are prepared to work with those who engage in genuine, constructive dialogue, rather than those who rely on political point scoring, to achieve meaningful compromise.

Turning to the other amendments made in the other place, I make it clear that the Government are thankful for all the scrutiny and are willing to engage with challenge. However, the other amendments are either already provided for or not necessary, or they simply make political points and play games with our national security, so we cannot accept them.

Lords amendment 1 would amend clause 1 to prevent the Bill and the treaty from entering into force until the Government had sought to renegotiate the termination clauses to include the base becoming unusable due to environmental degradation. That is unnecessary and I shall set out why. First, limiting the circumstances in which the treaty can be terminated protects the UK’s interests and those of the United States, which has invested heavily in the base. In line with the United States’ wishes, the previous Conservative Government agreed to limit termination to two grounds, both of which are in UK control, and this Government have secured that—

[Graham Stuart]

Will the Minister give way?

[Stephen Doughty]

I will if the intervention is on this point.

[Graham Stuart]

The Minister mentions the United States’ wishes, and he appears to be presenting the case that the United States remains in the position that it was in previously, despite what President Trump said last night. The Deputy Prime Minister said in February:

“If President Trump doesn’t like the deal, the deal will not go forward”.

Last night, President Trump said that he did not like the deal. Is it still going forward, or is the Minister suggesting that President Trump did not mean what he said last night?

[Stephen Doughty]

I have already answered that point. As I said, discussions will continue with the US Administration in the coming days, as they have done throughout the process. We will remind them of the strength of this deal, allay concerns and, of course, emphasise how it secures the base for both the United Kingdom and the United States. We work together on these matters. As the Speaker of the House of Representatives set out this morning, it is important that we work together on all matters of national security.

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[Priti Patel]

If the Government wish to U-turn and scrap the Bill, we would welcome that and support it; there is no question about that.

I turn to amendment 1. It is not just when it comes to money, which is addressed in amendment 5, that the Government’s claims lack any credibility; amendment 1, which deals with the surrender of British sovereignty, leaves us weaker and, as we have heard from my right hon. and hon. Friends, will compromise the long-term operations of the base.

We are required to give notice to the Government of Mauritius about a range of activities taking place on the base. As the hon. Member for Strangford (Jim Shannon) pointed out, Mauritius is a signatory to the Pelindaba treaty, and if that applies to Diego Garcia, it would prohibit the stationing and storage of nuclear weapons there. This is very serious. While the Prime Minister has claimed that China, Russia and Iran oppose the surrender, we know that they back it; they publicly endorse it, and they will seek to gain from this lack of sovereignty.

These points are all relevant to amendment 1, as it requires the Government to renegotiate article 11 of the treaty, so that payments cease should the use of the base for military purposes became impossible. Obviously, we hope that that scenario does not materialise, as we believe that Diego Garcia is a vital cornerstone of our national security and defence, and should remain so. However, as the treaty stands, if we stop using the base, the UK is still bound to make pretty significant payments over the 99-year lease period; it is a huge cost. Amendment 1 is therefore a vital point of contingency.

We would like the whole agreement binned, but we believe that it is reasonable and practical for the Government to accept this change. When he sums up, will the Minister explain why he is not prepared to consider the amendment, and to renegotiate parts of the treaty?

[Graham Stuart]

Does my right hon. Friend, like me, feel some sympathy for the Minister? He has rested his whole case on the support of the United States of America. The Deputy Prime Minister said that the Bill would not go ahead if the American President did not support it. We all remember the great mystery about who shot J.R., but there is no mystery about who shot the Minister’s fox—it was the President of the United States last night, and the Minister’s whole case has crumbled.

[Priti Patel]

My right hon. Friend is spot on. This is the critical moment when the Government should tear up the Bill and scrap this disaster. It should not proceed at all.

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[Graham Stuart]

The hon. Gentleman is talking about the costs of the deal. Can he just set them out for the House? I do not think anyone has done so in today’s debate so far, and he is speaking with such expertise. It would be great to hear from him exactly what this deal is costing.

[Alex Ballinger]

I will happily outline that to the House. The Minister has already outlined it: it is approximately 0.25% of the defence budget, which is tiny in comparison to the base in Djibouti that the French operate. If we compare it with the operation of an aircraft carrier or something of that size, it is very good value for money.

Lords amendment 6 would cut across long-standing constitutional practice on treaty payments, and would infringe Commons financial privilege and established arrangements for authorising expenditure. More importantly, it would send a damaging signal that the UK is building an exit ramp into primary legislation, weakening our hand and injecting instability into the very agreement designed to secure the base. The treaty already contains robust dispute resolution mechanisms, which is the right way to deal with such issues.

[Graham Stuart]

Will the hon. Gentleman allow me to intervene one more time?

[Sir Desmond Swayne (New Forest West) (Con)]

Oh, stop giving him extra time! He is not going to trouble the scorer, is he?

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[Stephen Doughty]

No, I will not give way. I am conscious of time—I need to respond to the points made.

Of course, many groups support the deal, including the Chagos Refugees Group, the Chagos Islanders Movement and the Seychelles Chagossian committee.

The shadow Foreign Secretary, the right hon. Member for Witham (Priti Patel), made many criticisms. We have heard and been through them a number of times. I remind her that, of course, it was her party that started the negotiations in the first place. She supported this when she was in government. The Conservatives have demonstrated absolute naked opportunism, ignoring the national security issues and jumping on the political bandwagon. They talk about defence and national security, but in 14 disastrous years in office their party hollowed out our armed forces. Our Government are investing at levels not seen since the cold war, and 85% of the negotiation rounds took place—

[Graham Stuart]

On a point of order, Madam Deputy Speaker.

[Madam Deputy Speaker]

I hope this is an actual point of order.

[Graham Stuart]

I fear the Minister may have inadvertently misled the House. The only public statement by the Chinese Government on this subject was on 29 May last year when they welcomed the Chagos deal.

[Madam Deputy Speaker]

That is not a point of order. Can we prevent the debate from continuing in points of order? If colleagues wish to intervene, they can try to do so, and it is up to the Minister whether he wishes to respond to those interventions. We can keep going until 7.18 pm when the time will cut off.