Diego Garcia Military Base and British Indian Ocean Territory Bill

Edward Leigh Excerpts

2nd reading
Tuesday 9th September 2025 Commons Chamber

[Luke Pollard]

I will come to the level of international support in a moment, but our allies back this Bill and support it strongly. When we look at which column people choose to be in—the column of those in support of the Bill, with our allies, with India, the United States and others, or the column of countries and people who oppose it—I know which side I am on. I am on the side of our allies. It is up to each of the opposition parties to choose whether they oppose the Bill and to decide which column they are in. That is a choice not for me, but for them. Only one column has our allies in, including our principal security partner, the United States. It is on the side of the treaty.

[Sir Edward Leigh (Gainsborough) (Con)]

I have long been interested in Diego Garcia, not least because I am one of the few Members of Parliament who has visited it, 40 years ago with the Defence Committee. May we get some certainty? Every time we mention the £35 billion estimate of the Government Actuary’s Department, the Minister’s colleague, the Minister of State, Foreign, Commonwealth and Development Office, the hon. Member for Cardiff South and Penarth (Stephen Doughty), brushes it aside and says that he does not recognise the number. Given that we are spending a lot of taxpayers’ money on this—something we already owned—will he tell the House in detail how much the agreement will cost us over its lifetime?

[Luke Pollard]

I am grateful to the Father of the House for helping me to get back on track with my speech, because that is the topic of my next section. I will answer the right hon. Gentleman’s question in my remarks, but if a bit is missing, he may ask to intervene on me again.

We have heard some outrageous claims artificially boosting the costs of this deal. It will cost an average of £101 million per year in today’s money. That is an investment in today’s money of £3.4 billion over 99 years. That has been rigorously calculated, based on net present value, the methodology endorsed by the Government Actuary’s Department and the Office for Budget Responsibility. All the associated costings have been laid previously before the House and were explained in full at the time of signature.

Crucially, the exaggerated numbers that have been cited ignore inflation, the OBR deflation mechanisms and the Green Book. The Government have secured a strong deal. I remind those who criticise it that the previous Government knew full well that the status quo was dangerous and unsustainable—that is why they entered into negotiations in the first place, why they held 11 rounds of negotiations under successive Prime Ministers, Foreign Secretaries and Attorneys General, and why the Conservatives have never been able to provide serious alternatives to this deal.