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Lord Weir of Ballyholme (DUP)

Speaking in the House of Lords on 18 November 2025

Debate

Diego Garcia Military Base and British Indian Ocean Territory Bill

Contribution

My Lords, it is always a pleasure to follow the noble Baroness, not least because my Amendment 59 comes from a similar position to her Amendment 23, in that it is a probing amendment. Indeed, looking across the range of amendments in this group, there is a considerable similarity between them; they all come from a similar spirit. The amendments in this group, including mine, reflect two particular anxieties and concerns with the Bill. First, there are the overall financial implications and the concerns that have been raised in relation to them. My amendment specifically looks at the financial implications for defence. Secondly, given that a number of the amendments seek for the Government to produce an assessment or report, there is a concern that we want to get clarity and full transparency from the Government on a range of financial matters. My amendment deals with both those concerns. On the issue of finance, we have already debated the transfer of sovereignty to Mauritius, which is proposed by the treaty and the Bill. A number of us have expressed our deep opposition to that, but this is not simply a case of handing over sovereignty to Mauritius. We are not simply giving sovereignty to Mauritius; we are paying Mauritius to take the Chagos Islands off our hands. That, in and of itself, shows one of the problems with the Bill. We have seen in black and white the figures for the various payments that there will be, and the range of different assessments of what this deal will cost the taxpayer overall over its lifetime. The Government put it at the lowest level, with a GDP deflator, at around £3.4 billion. I think the cash terms are around £13 billion. The Opposition have indicated their assessment, with inflation, at £35 billion. I know that, in another place, one of the other parties not represented in this House gave an assessment that it would end up being around £50 billion, so there is a very wide range of cost. However, one thing we can say with a level of certainty, as indicated by the noble Lord, Lord Hannan, is that this is money flowing out of this country that cannot directly benefit this country. If we make a presumption, which I will come to in a moment, that this is, in effect, defence spending then it is not simply money that cannot be used for the overall benefit of the UK; in defence terms, it is an opportunity cost. It is not simply something that is additional to the Bill, but money that cannot be spent on other things. Across the lifetime of this deal, whether we assess it at £3.4 billion, £35 billion or whatever figure you place on it, there will be real terms consequences for defence. It may seem a relatively small amount compared with what we will spend on defence over that period, but I will give a few examples from a defence point of view. The Type 26 frigate programme comes to about £8 billion, the “Queen Elizabeth” class carriers cost about £6.2 billion in total, and a single F35 fighter costs about £80 million. All those things are being taken away. Whatever money is assessed as the current value of our contribution to Mauritius via this deal is money that cannot be spent in this country. Finally, this again comes to the point about trying to seek a level of transparency. There is a level of dispute over how much we are spending and how we assess it, but there is also a lack of clarity about the budgets that money comes from. I think there are three possibilities. Is this money, in general, coming out of the Foreign Office budget? Is it more particularly, under that category, money that will be deducted from what would otherwise be overseas aid, or is it coming from the defence budget? The purpose of my amendment is to probe that and try to gain some clarity and transparency from the Government about not simply how much we are spending but where it is coming from.

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