Diego Garcia Military Base and British Indian Ocean Territory Bill

Lord Purvis of Tweed Excerpts

Monday 12th January 2026 Lords Chamber

[Lord Murray of Blidworth (Con)]

My Lords, I wish to address just one point made by the noble Lord, Lord Beamish. He said that the previous Government would inevitably have done a deal. Plainly, this is not so. As my right honourable friend Tom Tugendhat made clear in the debates on this Bill in the other place, both he and I, when he was Minister for Security, made clear our opposition to adopting this course of negotiations. Furthermore, when my noble friend Lord Cameron was Foreign Secretary, he was offered a similar deal to the present one and we know that he stopped the process. The current treaty is and remains an act of wanton strategic self-harm.

[Lord Purvis of Tweed (LD)]

My Lords, this has been an important debate on an important Bill and a considerable treaty that impacts on people’s lives and on international law, and which has direct relevance to UK national security. But this regret amendment has a bit of a Cambodia year zero feel to it, as if it all started last summer.

A casual observer would not be aware from this debate—notwithstanding the point that the noble Lord, Lord Murray, just indicated—that the previous Government chose to open negotiations to cede sovereignty in November 2022, without a mandate or consulting the Chagossian people. That decision by the previous Government, which we now know was opposed by the noble Lord, Lord Murray, and considered a mistake by the noble Lord, Lord Bellingham, was done without consultation and was not predicated on guaranteeing Chagossian rights. Furthermore, we now know that it was actively ongoing in April 2024. It was at that point that the then Foreign Secretary, the noble Lord, Lord Cameron, wrote to the Commons Foreign Affairs Committee to confirm the continuation of the negotiations, but also, regrettably, the ongoing denial of the resettlement and consultation rights of the community. So if we are to have regrets, perhaps there is quite a lot that can be shared around the Chamber.

I have previously said, and I do not want to repeat it, that we have a deep regret with the current Government. They have chosen not to change the path of the previous Government in coming to office, and they chose not to conclude the process differently. That has been the essence of the votes on the amendments in this House. At each step of the way, I have sought to raise the concern about a lack of consultation, consent and rights. I am very pleased that the House backed my amendments to seek to address this, and I hope very much that the Commons will now back this too. Putting the permissive elements of Chagossian rights in the treaty on a Mauritian and UK statutory footing should now be the priority. I hope this will get cross-party support.

From the outset, I have raised concerns over the lack of transparency in the financial arrangements and value for money. I was also very pleased that the House backed my amendments to give Parliament, and through it the wider Chagossian community, a much greater say—indeed, a final say—on ceasing making payments if Mauritius does not honour its commitments as part of the treaty. As the House knows, there are mechanisms in place only if the UK renege on commitments, not Mauritius. I am not saying that it will and I am sure both parties have entered into the agreement in good faith, but if, for whatever reason, they fail to honour commitments, Parliament must have the ability to cease the financial elements of the agreement. I hope that the Government will move on these areas as they are the view expressed by this House.

I turn to some of the wider political arguments that we have heard—and we have heard quite a lot. Notwithstanding the “year zero” feel of this amendment, anyone listening to the debate or reading it in Hansard should understand the basic numbers of this House, because some external messaging about stopping the Bill, and the last-ditch efforts of people who have not stopped it, need to be put into context. There are—and I like many of them—281 Conservative Members of this House, while my Benches have 75. There is a separate argument as to the numbers, of course, but the number of Conservative Peers alone could sway the decision today if the Motion is voted on, and I understand that it will be. It is basically a regret Motion. The Conservatives have chosen, with the fire and fury that we have heard in opposition, not to oppose the Bill today but to complain about it. The whole public should be aware that that is the reality of what will be happening today, and we will see how many of those 281 will at least complain about it, even though they are not seeking to stop it.

As we reach the end of this Bill, I thank most particularly the Chagossian community, many members of which have watched our debates. I have regretted some of the language that they have had to listen to, but I hope many of them feel that there are many people in this House who believe sincerely in their rights.

I thank Ministers who have been willing to listen, engage and—on certain occasions, as we have heard today from the noble Lord, Lord Lansley—agree. I want to chat with the noble Lord, Lord Lansley, about how persuasive he was, because I hope the Minister will now act on the other amendments that we have heard, but presumably that will have to be for ping-pong.

I support those who have helped me in the debate, including Adam Bull in our whips’ office, and many other people who have been in touch. I hope we can make progress and focus now on the priorities, which are Chagossian legal rights of resettlement, active consultation and participation, value for money and finance. We should return to these issues after the Commons has considered our sensible amendments.

[Baroness Chapman of Darlington (Lab)]

My Lords, this Government are doing the tough and vital work necessary to protect our national security. We were in opposition for a long time, 14 years, so I understand the temptation to play political games whenever you get the chance—I completely get that. However, one thing that we never did was put our national security at risk.

I do not aim these remarks at all the noble Lords and Baronesses opposite; I know for a fact that the noble Baronesses, Lady Foster and Lady Hoey, whose aim is true, have genuine, long-standing support for the Chagossian community, and they apply that to this debate. However, I have not seen that same integrity and care expressed by some others. Over the years, I often shadowed the noble Lord, Lord Callanan, but I do not think I have ever heard him mention the way that the Chagossian community has been treated or their rights or needs. I am the first to say that they have been badly treated, and have said so many times throughout the passage of the Bill.

I disagree with everything in the Motion. The deal secures the long-term future of the critically important military base on Diego Garcia. If we had not done a deal then that would have left the future of the base, as well as current operations, in jeopardy, with likely further wide-ranging litigation, which would have undermined base operations. Waiting for that risk to crystallise, as some noble Lords opposite encouraged us to do, would have placed us in a much weaker position from which to negotiate. Either there was legal jeopardy, which is presumably why the previous Government embarked upon round after round of negotiation, or, as they now ask us to believe, there was never any legal jeopardy, in which case what on earth were they doing with their time and that of officials undertaking negotiation in bad faith?

Unlike the previous Conservative Government’s strategy with the Rwanda deal, we have been upfront about the costs. We have set them out clearly in our Explanatory Memorandum and in the finance exchange of letters, which were published on the same day as the treaty and have been debated many times since.