Diego Garcia Military Base and British Indian Ocean Territory Bill

Jeremy Corbyn Excerpts

Committee of the whole House
Monday 20th October 2025 Commons Chamber

[Jeremy Corbyn (Islington North) (Ind)]

Will the right hon. Lady give way on that point?

[Wendy Morton]

I will make a little more progress.

We are not talking about a small area. The British Indian Ocean Territory spans 640,000 square kilometres of ocean. The Government’s treaty with Mauritius compels the UK to help Mauritius to establish and manage a new MPA, but we are being asked to fly blind with this Bill, because no agreement has been reached on what the MPA managed by Mauritius will look like.

[Jeremy Corbyn]

The marine protection zone was agreed by all parties. It is a sustainable protection zone. There has never been any debate or dispute about it; Mauritius has fully supported it all along and guaranteed its continuation. I do not understand why the shadow Minister is raising these matters. Does she believe that Mauritius will not look after the area properly? It seems to me that there is an attitude that is disrespectful of Mauritius and its determination to preserve the pristine nature of the ocean around the islands.

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[Dr Al Pinkerton (Surrey Heath) (LD)]

I will speak in support of seven amendments tabled in my name. For too long, decisions about the Chagos islands have been made without the consent of Chagossians. My grave concern is that the treaty to be given effect by the Bill fails to rectify that historical and ongoing injustice. Not only does it fail to provide adequate protection of their rights, it fails to establish a legally binding right to return or a binding programme of resettlement of the islands for Chagossians.

Turning to amendment 9, we recognise and support the importance of abiding by international law and believe that the UK was indeed right to open a process of negotiation with Mauritius—especially so given the risk that a judgment against the UK in any court could threaten our sovereignty over and security interests in Diego Garcia and the wider Chagos archipelago. However, the treaty that has emerged not only falls short in addressing past injustices, but introduces new injustices of its own.

At the very core of the United Nations charter—a document that this country helped to shape—lies the right of all peoples to self-determination. Article 1(2) could not be clearer: one of the purposes of the United Nations is to

“develop friendly relations among nations based on respect for the principle of equal rights and self-determination of peoples”.

Yet for the Chagossian people that right has been denied for more than half a century. They were exiled from their homeland in the Chagos archipelago, scattered across the globe, and left without the means or permission to return. It was, and remains, a moral stain on our modern history.

[Jeremy Corbyn]

I absolutely agree with the hon. Gentleman about the lack of morality in how the Chagossian people were treated—he is correct on that. Would he accept that there was something fundamentally wrong in 1965 in separating Diego Garcia and the archipelago from Mauritius when the whole area had always been administered from Mauritius as part of Mauritius, and that under decolonisation statutes they should have been included in the independence of Mauritius at that time?

[Dr Pinkerton]

I am grateful to the right hon. Gentleman for his intervention. I am aware that he has a long history in advocating for this particular cause, but I am relentlessly surprised by the position he takes on this point. He would seek to effectively reinscribe the colonial construction that was British Mauritius and in doing so ignore the right of Chagossians as a people to self-determine their own future. I do not see the colonial convenience of administration as anything other than overwriting a people’s right to determine their own future.

On that point, in 2019 the International Court of Justice issued an advisory opinion that concluded that the decolonisation of Mauritius had not been legally completed and that the United Kingdom should end its administration of the Chagos islands as rapidly as possible. The General Assembly subsequently endorsed that same view. But I say to this House that the ICJ opinion, however well intentioned, poses a profound problem. It proposes to hand sovereignty not to the Chagossians themselves but to Mauritius, without consulting those who were born of the islands or who are descended from them. That is not self-determination but the transfer of sovereignty over a people without their consent. The right to self-determination belongs to peoples, not to Governments. It is not and should not be a device for tidying up the diplomatic ledger of empire, but a recognition that every community has the right to shape its own future. To remove the Chagossians once was a horrific wrong. To barter away their sovereignty now without their voice compounds that wrong.

If we truly honour the UN charter and the principles that this country has long championed, the Chagossians themselves must be placed at the centre of any future settlement. They must have a say over their citizenship, over the governance of their islands and over the prospects of return. The commitment to a referendum that sits at the heart of amendment 9 seeks to address that long and burning injustice by providing Chagossians with the opportunity to exercise their right to determine their own future.

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[Jerome Mayhew]

It is for exactly those reasons that we so desperately need new clause 5, which would require an annual security report to the Intelligence and Security Committee. That would mean that we are not caught with our heads in the sand again.

We are beginning to build a picture of a slippery Government who are not being honest with the British people, not being honest about the legal justifications for this deal and not being honest about the security risk associated with the deal, and who are now being slippery about the financial cost as well. Again, the Prime Minister himself said that this slippery deal was going to cost the taxpayer £101 million a year for 99 years. He rounded that down from £10 billion, which my maths would have come to, to £3.4 billion. Through a freedom of information request, the Government Actuary’s Department has confirmed that the actual cost is £34.7 billion. Did the Prime Minister just get the decimal point in the wrong place, or was it something more sinister?

Madam Chair, you could be forgiven for thinking that the Government should no longer be trusted. They are changing their story in relation to this agreement, and they changed their story in relation to the China spy trial collapse. We need new clause 1 so that no payments can be made without direct approval from the House of Commons. At least then the Government would have to explain the real figures and be open to transparency and scrutiny.

The public see through Labour’s deal, and they know a sell-out when they see one. The Opposition amendments and new clauses bring transparency to expose this sell-out from a weak Prime Minister without the backbone to stand up for Britain. No wonder Labour Members are about to vote against them.

[Jeremy Corbyn]

I will be brief, but I am very pleased to be able to speak in this debate as chair of the all-party parliamentary group on the Chagos islands, which last week had its 103rd meeting. It has been ably supported by David Snoxell, the former British high commissioner to Mauritius, who has done incredible work with his knowledge of and empathy for the Chagossian people. There are two former chairs of the group in the Committee at the moment—the hon. Members for Romford (Andrew Rosindell) and for Wythenshawe and Sale East (Mike Kane)—and the former Member for Crawley was also chair of the group at one time.

We founded that group a long time ago to listen to, and take action in support of, the Chagos islanders, who were angry that they had been forcibly removed from their homes, angry at the way they had been treated by successive British Governments, and very angry at the initial decision that was taken and the sheer brutality that went with it. To give Members a brief example, in 1973 a 20-year-old Chagossian woman, Liseby Elysé, while carrying her unborn child, was forcibly removed from the Chagos island of Peros Banhos. She lost her unborn child soon after her traumatic upheaval and the journey, and she and her husband survived with considerable uncertainty and in very precarious living conditions, like all other Chagossians. However, 45 years later, in 2018, she represented her community at The Hague when she spoke about her life and her losses. Her story was compelling and memorable, like those of so many other Chagos islanders, because of the personal horror, trauma and abuse that they suffered. They have always demanded and fought for their right of return, and that is the central core of what the all-party parliamentary group on the Chagos islands has done.

I realise there are now different opinions in the group about the sovereignty or otherwise of the islands, but there has always been a fundamental agreement on the right of return. That led to massive legal actions, which were bravely fought by the Chagos islanders with very little support. There were a few people such as Richard Gifford, their solicitor, who were fantastic in their support. Eventually, we gathered wider support, and we got favourable decisions at all levels of justice around the world, including at the United Nations General Assembly.

It is worth recalling, as many Members have done, the 1965 decision made by Harold Wilson, then Prime Minister. In offering Mauritius its independence, he came to this extraordinarily complicated deal, which essentially involved the United States getting a base on Diego Garcia and, in return, Mauritius getting its independence. Somewhere along the line, as the hon. Member for East Wiltshire (Danny Kruger) pointed out, there would either be a discount on the next generation of nuclear weapons, or free delivery of weapons at some point in the future. A lot of this was shrouded in mystery, in the private conversations between Wilson and Prime Minister Ramgoolam at the time, so there is a lot of confusion surrounding that.

Somewhere at that time the idea was to set up the British Indian Ocean Territory, and somewhere at that time the decision was made that the archipelago—including Peros Banhos, which is a considerable distance from Diego Garcia—would be separated from Mauritius as well and that it would have to be depopulated, hence the utter brutality of the removal of the entire population from the islands. So the question that many Members have brought up is this: should the Chagos islands be separate from Mauritius or part of Mauritius? Interestingly, during the 1965 discussions Mauritius never accepted the separation. It never accepted that the Chagos islands should be separated either constitutionally or in any other way from Mauritius. As we know, the decision was basically forced on the Mauritians in return for their independence.

We now have a situation in which we have finally got a treaty. It has its imperfections—of that everyone is agreed. Personally, I am less than happy about the idea of a massive military base on Diego Garcia, and even less happy that it might be there in 100 years’ time. However, a treaty has been agreed that will ensure the right of Chagos islanders to return to the Chagos islands, but unfortunately only a limited right of return to Diego Garcia itself. I am looking forward to the Minister’s speech, and I would be grateful if was able to say a bit more about the rights of access to Diego Garcia for Chagos islanders, their right to visit the church and the graves of their ancestors, and whether there is some possibility of a degree of residence on Diego Garcia. There is no other place in the world where a military base is surrounded by an entirely depopulated area, in this case an island, and I would be grateful if the Minister was able to say something about that.