Sir Iain Duncan Smith

Sir Iain Duncan Smith

Conservative — Chingford and Woodford Green

Speaking in the House of Commons on 28 January 2026

Debate

British Indian Ocean Territory

Contribution

My right hon. Friend is absolutely right, as he normally is. The reality is that the treaty to which he refers is very clear that its signatories cannot modify it; they must categorically agree not to have nuclear weapons on their territory. We are in the business of giving that territorial right to Mauritius, so there is no question but that the treaty will apply to Chagos. That brings me to the other thing that the Government simply do not want to face up to: the 1966 treaty between the USA and the UK is absolutely clear. The Government obfuscate by calling it an “exchange of letters”, but it is actually a treaty. When we talk about an exchange of letters, it sounds like a “get well” card or something that one puts in the post. The Government say that this is not a big problem and that we can just exchange a few letters to each other: “How are you getting on?” “Fine. What about you?” “We’re just going to give the islands away. Are you okay with that?” “We’re okay with that—no problems. Can you give us a bit more detail?” “We will when it is all passed. Don’t worry about it. We’ll be with you on this.” No, it is a treaty. It has the substance of being a treaty, and that substance states categorically: “The Territory shall remain under United Kingdom sovereignty.” We cannot arbitrarily change that; we have to have full agreement from the USA. I do not believe that the United States really understood that it would not have sovereign rights over the base. I do not think the Government ever bothered to explain that, because I seem to recall that when this whole debate began, it was never mentioned. The Government did not come forward and say, “Yes, we’re going to get this Bill through. It’s not in the Bill, but we’ll exchange letters with you afterwards, because although it’s relevant and it’s completely sovereign, we don’t want to talk about it.” The Government have to explain why they have never made any significant mention of that at all, because it now has a massive bearing on what happens to this really poor treaty, which is badly drafted, hurriedly written and only a few pages long. I sat through the debates on the Maastricht treaty—rebelling, of course—and the reality was that it was huge. Every aspect of our arrangements was in there and was debatable and amendable. It has been horrific to see how quickly the Government want to get the Bill through. I honestly think that it is madness. I come to the cost. The other bit that is completely wrong is the Government’s desire to show how little they have had to pay under the treaty to get what they consider to be a reasonable lease. Is it not ironic that the Government are now moving against leaseholders here in the UK? They do not like leases. Apparently, people do have enough power over their leases. I simply say that the Government should learn from their own views about what is happening domestically. The lease is a terrible thing at times, because it gives people so little control. This is going to be a lease.

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