Diego Garcia Military Base and British Indian Ocean Territory Bill

Lord Weir of Ballyholme Excerpts

Tuesday 25th November 2025 Lords Chamber

[Lord Lilley (Con)]

My Lords, I want primarily—perhaps later—to talk about my Amendments 20Q and 20U, but I will say something about my noble friend Lord Hannan’s Amendment 20L to emphasise one particular precedent he mentioned in passing but seems the most compelling and dangerous. Indeed, in line with the noble Lord, Lord Purvis, I have been rather cautious about discussing this because I did not want to put ideas into people’s heads, but, for two reasons, I will go ahead and talk about it now. First, there is no better way to keep a secret than to pronounce it in the House of Lords; and secondly, as my noble friend Lord Hannan said, there are lawyers in every country looking to see whether this is a precedent that they could use to right some past wrong or to change some past circumstance which they would like changed.

The most compelling comparison is between what we are doing now and the reasons given for doing it and the independence of Cyprus, where we severed off the sovereign bases. They were part of a whole. The territorial integrity of Cyprus was divided between the sovereign bases and the rest. That is exactly what we are accused of doing in the case of the Chagos Islands. It is actually much more true in the case of Cyprus than in that of the Chagos Islands, because Cyprus was always governed as one unit by us whereas the Chagos Islands had separate laws, even if they were transmitted from somebody resident in Mauritius. Therefore, if we are saying that there is compelling reason for us to say we cannot separate the Chagos Islands from Mauritius, of which it has never been part, then surely there are compelling reasons why we should never have separated the sovereign base territories from the rest of Cyprus.

Those bases are hugely important. They played a role time and again in recent disputes and interventions, and in the prospect of interventions in the Middle East. We have been able to help fly from them and intercept missiles from Iran coming towards Israel. In previous conflicts, we used the bases there. They of value not only to us but to the whole of NATO. If we put them at risk by saying to the world that we have no right to have separated them then we would be doing something very foolish.

The only difference I can think of—I am offering a solution to this dilemma, because I do not want the issue of the sovereign bases to be opened up in a dangerous way—is that the decisions in Cyprus were taken before the United Nations General Assembly resolution on which the advisory opinion of the ICJ was based, and therefore it did not apply to them. Of course, advisory opinions are not actually binding—they are wrongly taken as being binding but they are not—but do they apply retrospectively? In many cases when courts rule, they say, “This has always been the case; we’ve only just now ruled it”.

I would like to hear how the Minister proposes to defend the sovereign bases in Cyprus from this precedent. She is obviously not doing this willingly; she is obviously unwilling and she is a wonderful Minister, but she has been given a tough job to do. I would like to hear some justification for this. I do not know whether the precedent in Committee allows me to sit down now and stand up later to deal with my amendments, but assuming I can do that, I will.

[Lord Weir of Ballyholme (DUP)]

My Lords, I will briefly make two points. First, on behalf of my noble friend Lord McCrea, who has had to leave for a family wedding, I will speak to Amendment 57, which principally brings to the Committee’s attention the role of British legal firms in this issue.

We have been critical in this House of the current and, to some extent, the previous Government. Those criticisms are not entirely without merit on the issue of sovereignty. There has also been further British involvement in any number of aspects, the four most significant legal interventions being two cases in connection with UNCLOS; one relating to the advisory opinion of the ICJ; and one on the drafting of the UN security resolution. In each of these four cases, the Mauritius Government used British firms as their legal representation in order to further their aims. In effect, British firms acted on behalf of a foreign Government to challenge British sovereignty, British defence rights and the wishes of British citizens. We cannot do anything about what happened in the past, but I suppose the amendment queries whether there is an appropriate way forward in terms of that level of support for Mauritius. Raising my noble friend Lord McCrea’s amendment gives the Government an opportunity to respond to it.

I want to deal briefly with the wider point. We do not always see eye to eye, but I agree with at least one phrase that the noble Lord, Lord Purvis, used: he said that we have to be careful about words, and words matter. One of the major concerns, as highlighted by the noble Lord, Lord Hannan, and others, might be described as the precedent and the ripple effect. It is undoubtedly the case that in the past we as a nation have made mistakes in dealing with overseas territories. In particular, we have sent out the wrong signals on both the Falklands and Gibraltar. It is probably the case that some, at different points within Governments in the past, would have been quite happy to see those territories dispatched to another sovereign territory on that basis. They can best speak for themselves but, fortunately enough, in each case we have drawn back from what might be described as a fatal mistake. The danger with this is that it crosses the line in handing over that level of sovereignty.

Mention has been made of a range of overseas territories. The one thing that largely unites them is that whatever discussions we have had with different Governments, about whatever level of co-operation, they have ultimately respected the self-determination and the inhabitants’ will for sovereignty. That is what at times has drawn us back. I think this goes beyond that and moves towards a situation regarding the wishes of the Chagossian people and their right to self-determination—and that self-determination may, because we do not know definitively, express itself in them saying, “We want to be part of Mauritius”. If that is their self-determination, so be it. I think it is unlikely to be the case; nevertheless, so be it. The concern is the signal that this sends out to the outside world.

The Minister mentioned the arrangements as regards Gibraltar. I think there has been work ongoing with both this Government and the previous Government to try to find arrangements that are in the best interests of Gibraltar. I entirely acknowledge that, while it is sometimes easy to criticise when looking from outside, the Gibraltar Government themselves have been supportive of those actions and have backed the moves made so far.

[Baroness Chapman of Darlington (Lab)]

It is really important that there is not a dispute with regards to Gibraltar. There is an arrangement that is agreed with Spain and it is not in question at all, in any sense.

[Lord Weir of Ballyholme (DUP)]

Absolutely. I have taken the Minister and the Government to task on a range of things, but this may be one issue on which we are in vigorous agreement. I do not question the Government’s bona fides as regards Gibraltar or the Falkland Islands. I know there is a strong commitment to both. I fully acknowledge that and believe it would be the case under a future Government, but this is not a concern over the attitude of this Government or other UK Governments over the ripple effect. It is the danger of what message will be sent out; as the noble Lord, Lord Hannan, said, there is a ripple effect towards Madrid and Buenos Aires, which might take a very different approach in future.

[Baroness Chapman of Darlington (Lab)]

I am really sorry, but we have an agreement with Spain. The matter is settled. Madrid takes the same view that London takes; it is the same view that the Government of Gibraltar take. It is settled, and it is beyond unhelpful for noble Lords—unintentionally, I realise, as this is a relatively recent development—to suggest in any way that that is not the case.

[Lord Weir of Ballyholme (DUP)]

I am not querying that. What I am saying is from experience and from having spoken directly to Gibraltarians in relation to this. They know that a very good agreement may have been done with this Government, but Spanish Governments down the years have sometimes tended to blow hot and cold as regards Gibraltar.

[Baroness Chapman of Darlington (Lab)]

It is agreed.

[Lord Weir of Ballyholme (DUP)]

Yes, but part of the problem is that sometimes in this country we fall into a trap where we see agreements as final settlements. There are sometimes other Governments who either see them as a process or, while they may be fully committed to them, cannot say whether a future Government would feel bound in their attitude towards them.

I appreciate that we have it in black and white as regards Gibraltar and I do not doubt the actions taken by the Government. I fully support them, beyond any question mark of doubt, but we have been told by Gibraltarians that sometimes what happens in Madrid can run contrary to what happens in the border provinces with Gibraltar, which want to have a much stronger relationship. Depending on what attitude they want to take, they can turn hot and cold on the relationship. I have no doubt that the Government have done a very good job in nailing down that agreement but, again, I just express the concern for a future situation—perhaps it is more pertinent for Buenos Aires, which down the years has had a much more volatile approach to some of these issues—over the signals that we inadvertently send by way of this to other Governments. I have no question over the bona fides of either this Government or future UK Governments in relation to that.

[Baroness Ludford (LD)]

Does the noble Lord accept that perhaps a closer analogy is where a party has one position when it is in government but a completely different one when it is in opposition, which is true of His Majesty’s Opposition towards this treaty with Mauritius?

[Lord Weir of Ballyholme (DUP)]

That is true of a party that votes against it at Third Reading in the House of Commons and then seems largely supportive of the deal here. So, yes, that could be a perfectly good opportunity, but that can be applied in several parts of the body politic.

[Baroness Hoey (Non-Afl)]

I am getting rather tired of this Front-Bench thing about what the last Government did. The reality is that the last Government did not sign any treaty. They may have been talking. They could have talked and talked, but they did not sign a treaty. This Government came in and signed a treaty.

[Lord Weir of Ballyholme (DUP)]

I do not hold a brief for either the Government or the main Opposition. I am happy for them to spell it out. Undoubtedly, what the noble Baroness, Lady Hoey, has said is correct, but rather than essentially being in a position where we look to see where the lines of accountability and blame should lie, we should ultimately be focusing on ensuring that we support the self-determination of the Chagossian people. That is the fatal flaw with this agreement.

[Lord Sentamu (CB)]

My Lords, I just want us to remind ourselves of the history of the British Empire and how Macmillan suddenly said: there are now winds of change and, if we resist, we may lose something very good. Her Majesty Queen Elizabeth II created this wonderful thing called the Commonwealth. She put in a lot of effort and energy, and those countries that were once ruled are now part of the Commonwealth, and what is interesting is that in most of those countries the national language is English. So there can be a transition that does not destroy a lot of goodness nor give the impression that those territories where the sovereign is still His Majesty the King will simply look at this and say, “They did it, so we can”. You will find that politically, in Jamaica and other places, the Crown has made it very clear that this is a decision of those nations. If they wanted to become independent, that is their decision. They are not going to force themselves on anybody.

I thought the treaty that was entered into with Mauritius was to create a long-term use of Diego Garcia and the archipelago. If we did not, the challenge was soon going to come because of what happened at the United Nations. We would have found ourselves with a big challenge. Even China was interested in challenging British sovereignty, but now a treaty has been signed and has secured this.

Another good thing on which I want to congratulate the Government is that they did not simply sign a treaty so that this base can be used for 99 years. Because sovereignty is now being transferred, they also provided a trust fund for the Chagossians to be better looked after than when the British had sovereignty over the place. This is a win-win situation for the Chagossians and for Britain. We now have security of the base for a 99-year lease. That is quite a long time. I do not think you and I will be here in 99 years, but those who are here may say we did a good thing at the time. As for the fear of the noble Lord, Lord Hannan, of what other places may do, it is their right to do whatever they want to do.