Diego Garcia Military Base and British Indian Ocean Territory Bill

Baroness Foster of Aghadrumsee Excerpts

Tuesday 25th November 2025 Lords Chamber

[Lord Callanan (Con)]

My Lords, the trust fund set up for the Chagossians is absolutely central to this treaty. Under Article 11, the Mauritians have been given the responsibility for administering the fund, which will be paid for, of course, by the UK. However, we still do not have any clarity on how Mauritius will manage the fund. We seem to have no say in it whatever.

The reality of Mauritius’s past record is also a cause for concern. Since the forced removal of the Chagossians from the archipelago, many Chagossians have lived on Mauritius. As has been pointed out a number of times in the debates so far, in the 1970s the UK Government paid £4 million into a trust fund for the benefit of registered Chagossians. I would be very interested to know the Government’s assessment of whether that trust fund has indeed been a success. Do the Government have any concerns about the way Mauritius has managed that fund before we offer to donate cash for another one? If the Government are concerned about Mauritius’s past actions in this area, what additional assurances have Ministers sought from the Mauritian Government to prevent mismanagement, corruption or failure to properly distribute funds in future?

The domestic reality of this arrangement is also worrying. Many Britons will struggle to understand why we are transferring funds to a foreign Government so that they can manage a trust fund on our behalf. Does this mean that we are transferring funds without proper control over how those moneys are spent? What powers will the UK have under the treaty to ensure that Mauritius is fulfilling its responsibilities? These are all important questions—many Members have raised them in the debates so far—which Ministers should seek to answer, either at the Dispatch Box or in the Bill.

Amendment 17 in my name and Amendments 26 and 78 in the names of my noble friends Lord Lilley and Lord Hannan of Kingsclere relate to the employment of Chagossian citizens on the military base. The treaty makes provision for the employment of Mauritians on the base. We debated issues related to that provision in an earlier group. The treaty, sadly, does not make any provision for the employment of Chagossians on the base. We already know how many Chagossians living on Mauritius feel that they are treated as second-class citizens. Does the Minister agree that Chagossians should have similar protections for their employment on the military base as Mauritians?

Amendment 81, in the name of the noble Lord, Lord Morrow, is a very simple amendment that would provide for a report on the impact of the treaty on British Indian Ocean Territory citizens. I see no reason why a Minister would refuse to produce that report. The rights of BIOT citizens are, or should be, central to the future of the islands. We need some clarity on this matter. If the Government cannot commit to a report on the impact of the treaty, will the Minister at least give the Committee an assurance that her department will do everything in its power under the terms of the treaty to ensure that BIOT citizens are properly supported by Mauritius?

I look forward to hearing the rest of the debate and the Minister’s reply.

[Baroness Foster of Aghadrumsee (Non-Afl)]

My Lords, in this group I will speak to my Amendments 20A, 50A and 81A. I also strongly support Amendment 55 in the name of my noble friend Lord Weir of Ballyholme. As the Minister knows, I have asked several questions about the trust fund, which, as I understand it, will be totally in the control of the Mauritian Government. This brings inherent problems, particularly as those Chagossians living here in the UK are often near or below the poverty line and could well do with access to help and assistance. Amendment 55 seeks to probe the fairness of the payments to Mauritians and Chagossians.

I will go further in saying that the Secretary of State should establish a Chagossian advisory council comprised primarily of individuals of Chagossian descent, including members based here in the UK, Mauritius and Seychelles. This council could then be consulted on all strategic programme and spending decisions relating to the trust fund, ensuring that Chagossian communities are directly involved in shaping priorities and oversight. That would promote transparency. The minutes of the council meetings and any recommendations or advice could also be published annually. That goes further than the amendment in the name of my noble friend Lord Weir, but I would be obliged to hear from the Minister on this as it would deal with some of the issues around transparency and accountability as well.

On Amendment 20A, I am not going to labour the points raised as we discussed some of this last week in Committee, but I remind the Committee that the current provisions of the treaty do not grant a right for Chagossians to access their homeland. They leave it up to the Mauritian Government as to whether this happens. Article 6 states that the Mauritian Government are

“free to implement a programme of resettlement”.

That falls far short of right to access the islands. That is what this amendment seeks to do.

Amendment 50A concerns the protection of Chagossian identity and birthplace. I tabled this amendment at the request of the Chagossian community here in the UK, including many native islanders who were born on Diego Garcia, Peros Banhos and Salomon before their forced removal between 1968 and 1973.

This amendment is not theoretical and it is not precautionary. It responds to a real, current and deeply troubling practice that is already happening, and the Committee needs to be aware of the seriousness of this. We have now seen documentary evidence that Mauritian authorities have begun issuing birth certificates to Chagossians in which the true place of birth has been removed and replaced with Mauritius. In each case, the names of islands such as Diego Garcia, Peros Banhos or Salomon have been deleted from the official record. It is not an allegation; it is a matter of record. Chagossian families have shown us the documents and they have been verified by lawyers. Native islanders born on Peros Banhos and Diego Garcia are now being told by a Government claiming future sovereignty over their homeland that they were not born there at all.

This pattern of altering official records is consistent with long-standing concerns expressed by Chagossians who lived in Mauritius, many of whom describe decades of discrimination, marginalisation and a complete lack of constitutional recognition as a distinct people. United Nations human rights experts have previously documented that Chagossians in Mauritius faced entrenched barriers to housing, healthcare, employment and political participation, and continue to experience de facto discrimination as an Afro-descendant minority. Would the Minister care to look at the page on the website of the Mauritian Government which is dedicated to the Chagos Archipelago? There they refer to those who were “forcibly removed” from the islands in the 1960s as

“Mauritians born and residing at the time in the Chagos Archipelago”.

I have seen the passport of a Chagossian who was deported from Diego Garcia to the Seychelles. In that case, the birthplace that was originally recorded as Diego Garcia has been replaced with Mauritius. I am informed by those directly affected that this practice followed political agreements involving the former Mauritian Prime Minister and the former Seychelles President, under which Chagossians living in Seychelles were required to have Mauritius entered on their documents rather than the true place of their birth on the island. Whether these arrangements were informal or formal, the effect is the same: the birthplace of Chagossian natives has been erased, replaced or falsified. That is an act of identity deletion; it is happening now, and the evidence is in front of us.

The way to deal with this is through this amendment, which I believe is essential. The Chagossians were removed once, their homes were demolished, their pets were killed, their possessions were thrown into the sea, and they were shipped to Mauritius and the Seychelles with no warning and no rights. They lost their land, their livelihood and their future. What they ask for today is, I believe, modest in comparison. They ask for the one thing they still possess: the truth of who they are and where they were born. The Committee needs to be cognisant of that. Identity is not a technicality; for a displaced person, it is absolutely everything. It is the final surviving link to their home, lineage, history and dignity. Yet we now know—not just fear or speculate—that the birthplace of Chagossian natives has been altered by an external authority. There can be no more powerful demonstration of why this House must intervene.

The Government have repeatedly argued that decisions about the Chagos should respect international norms—we have heard it many times in this House. International law is absolutely clear on this point. Altering a displaced person’s civil status records without their consent violates the principles laid down in the International Covenant on Civil and Political Rights, the UN guiding principles on internal displacement and the fundamental norms to identity as recognised in human rights jurisprudence.

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[Baroness Chapman of Darlington (Lab)]

That is correct, but those payments would not have paid for a legally secure operation of the base alongside our United States allies. Whatever legal geniuses we have opposite us today, those in the White House differed on the analysis now being put forward by the Conservative Party, which is clearly different from what they put forward in the not-so-distant past.

The agreement gives Mauritius the opportunity to develop a programme of resettlement on its own terms, without requiring the UK taxpayer to pick up the bill.

On Amendment 81G from the noble Lord, Lord Kempsell, as I and other Ministers have said on numerous occasions, it will be for Mauritius to establish a programme of resettlement once the treaty comes into force. I am very sympathetic to the way he put his case on this, but it would not be a good use of taxpayers’ money to keep reporting on something that is not in our gift to achieve. The Government are increasing their support to Chagossians living in the UK through new and existing projects. These include Chagossian-led community projects in Crawley and beyond, as well as education and English language support, and have involved the creation of a number of FCDO-funded full-time jobs for Chagossians. The noble Lord, Lord Ahmad, asked me about commitments on this going forward. We are committed to these at least until the end of this Parliament. He will understand that what happens beyond that may depend on decisions of Ministers in the future.

Amendment 31 tabled by the noble Lord, Lord Morrow, and Amendment 55 tabled by the noble Lord, Lord Weir, ask for an equality impact assessment on the payments to be made by Mauritius to Chagossians. The Government have already released the public sector equality duty report relating to the treaty, which addresses all the issues around equalities and the impact assessment.

Amendment 50A tabled by the noble Baroness, Lady Foster, raises a really important issue. We do not think it is necessary to make provision for this in the Bill, but we understand her concern. As I said in my letter in relation to the first day of Committee, we will work with relevant authorities to ensure that official documentation reflects historic connections to the Chagos Archipelago wherever possible. British passports issued to Chagossians will continue to display their place of birth and, if they wish, those who already have British Overseas Territories citizenship status can hold a British passport reflecting their status as British Overseas Territories citizens. I am very sympathetic to the arguments put forward by the noble Baroness and commit to making diplomatic representations to the Government of Mauritius to ensure that place of birth is recorded accurately on documentation.

[Baroness Foster of Aghadrumsee (Non-Afl)]

I very much appreciate the Minister’s commitment to do that, because this is such a hurtful thing. Sometimes, those of an Irish republican disposition will say that I am not British but just Irish, so it is something I feel very strongly about. The Chagossians are entitled to have their identity confirmed, and I would be very pleased if she could write to me after she raises those issues through the diplomatic channels.

[Baroness Chapman of Darlington (Lab)]

Of course, I would be very happy to do that.

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[Baroness Hoey (Non-Afl)]

My Lords, I wish to speak to my Amendment 54. I must say to the noble Lord, Lord Kerr, that I think we are all pleased that we are where we are. It seems very strange to say that we cannot be discussing the Bill—that was almost the way it was put.

My amendment really follows on a little from what the noble Lord, Lord Weir of Ballyholme, talked about. During Committee in another place, concerns were expressed that other countries may seek to lease individual Chagos Islands and reference was made to reports that India and China were in consultation with the Republic of Mauritius. At that time, the Minister of State at the Foreign, Commonwealth and Development Office, the honourable Member for Cardiff South and Penarth, responded robustly. He stated:

“I want to say on that point that this is absolute nonsense. Is the shadow Minister willing to provide any evidence that that is going to take place? This treaty protects the security of the outer islands and expressly prohibits foreign forces building bases on them—something on which her Government did not succeed in their negotiations”.—[Official Report, Commons, 20/10/25; col. 686.]


What is this great protection to which he referred?

Noble Lords will find that in paragraph 3 of the first annex to the Mauritius treaty. It states:

“In accordance with this Agreement, in respect of the Chagos Archipelago beyond Diego Garcia, Mauritius agrees”—


this is point d—that,

“except in circumstances of necessity for a response to a humanitarian emergency or natural disaster in instances where the United Kingdom or the United States of America is unable or unwilling to provide such a response, Mauritius and the United Kingdom shall jointly decide on authorisations permitting the presence of non-United Kingdom, non-United States or non-Mauritian security forces, either civilian or military”.

I cannot see anything there to validate the Minister’s assertion that the treaty

“expressly prohibits”

foreign forces building bases on the islands. What it says is that they cannot do so without the agreement of the UK Government.

For me, this presents two real concerns. First, and most importantly, there is nothing in the treaty to provide any kind of safeguard in relation to the leasing of islands for purposes other than security and defence. This would leave the door wide open for other countries to seek to lease the islands, ostensibly for purposes other than security and defence. The argument made by the Minister in the other place was that the suggestion that there was a problem was nonsense. It seems to me to be very well founded. The extraordinary thing about these provisions is the fact that they relate to islands of immense geostrategic importance, yet the protections in relation to them are effectively non-existent. That seems very complacent to me.

There is nothing to prevent a hostile country leasing an island and either combining security and defence purposes with others, in the hope of hiding the former, or on beginning with non-security and defence purposes and then changing over to them. Can the Minister tell me how that could be prevented? What would happen if an island is leased for non-security and defence purposes, yet it subsequently becomes apparent that it is being used for those purposes and that the country has dug in well and has no intention of relinquishing the islands? How could they be dislodged? Would the Minister here like to respond on that? I found the suggestion from that Minister in the Commons that there are no presenting difficulties quite alarming. It suggested a certain otherworldliness with a high degree of disconnection from political reality.

Secondly, the other difficulty is the completely opaque nature of the protection that is provided and the lack of parliamentary scrutiny. At the moment, we would have no knowledge about when or if approaches were made by the Republic of Mauritius to seek UK agreement for other countries to use other islands, and we need to know that. My Amendment 54 would address this concern by requiring the Minister to develop regulations stating that before the UK can agree to a proposal from the Republic of Mauritius—made under Annex 1(3)(d) of the treaty—that any island other than Diego Garcia be used for security and defence purposes by another country, that proposal must be brought to Parliament and endorsed by a vote of both Houses. Will the Minister give me a reason why that should not happen?

In ending, I will ask at this stage about the point made in the debate on the fourth group about whether the Government were asked to give their consent before the deal between Mauritius and India was done. I am not sure that we got a response to that. It was going to give India a defence presence. I would really like to know how long the Government knew before that happened. Did they know and when did they agree to it?

[Baroness Foster of Aghadrumsee (Non-Afl)]

I will speak to my Amendment 81J on behalf of all those who have written to me, urging the House of Lords to look again at the security implications of the Bill. My amendment would require the Secretary of State to consult the Government of the United States before taking any action that may affect the security environment of Chagos or the operation of the facilities on Diego Garcia. It is simple, reasonable and, I think, essential. The Minister may well say that we will of course speak always and at length to our closest ally, but this amendment seeks to put that into the Bill and on a mandatory footing.

We are all aware that Diego Garcia is not an ordinary base; it is the backbone of US and UK operations in the Indian Ocean, the Middle East and east Africa. It is critical for surveillance, early warnings, carrier support and global rapid deployment. Hundreds of thousands of British and American personnel have depended on it for missions authorised by this country, but the Bill does not have any statutory requirement even to consult with the ally whom we seek to stay closest to. Of course, the US is not a passive observer; it is a treaty partner that has kept those waters free from extremism, piracy and hostile influence for decades. Therefore, this is a straightforward amendment. I will not prolong the debate, because I can see the Whips getting nervous. Unfortunately, this is a rather large group of amendments, but I thought that it was very important to speak to my amendment. I hope that it will be considered by the Committee.