Diego Garcia Military Base and British Indian Ocean Territory Bill

Alex Ballinger Excerpts

2nd reading
Tuesday 9th September 2025 Commons Chamber

[Luke Pollard]

In a moment. I will come to the hon. Gentleman—he should not worry.

A judgment from such a tribunal would be legally binding on the UK. It would impact on our ability to protect the electromagnetic spectrum from interference, and impair our ability to ensure access to the base by air and sea, to patrol the maritime area around the base and to support the base’s critical national security functions.

[Alex Ballinger (Halesowen) (Lab)]

My hon. Friend has spoken about the important capabilities of this vital US-UK base. Does he agree that it would be dangerous and counterproductive to put those capabilities at any risk—certainly if that could have happened in a matter of weeks or months?

[Luke Pollard]

I agree, and it is precisely the reason why the Conservative Government started the negotiations in the first place. You do not accidentally rock up one day to the Foreign Office and decide to start international negotiations; you do so because there is a clear risk to the future of the military base. That is why the Conservatives started the negotiations, why they had 11 rounds of negotiations, and why we had to conclude the deal.

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[Luke Pollard]

The Foreign Office and the Government published the Government’s legal position when the treaty was laid. That assessment says:

“The longstanding legal view of the United Kingdom is that the UK would not have a realistic prospect of successfully defending its legal position on sovereignty”

in any future sovereignty litigation. That important and long-standing view predates this Government. Again, it was one of the reasons why the Conservative Government began the negotiations and held 11 rounds.

[Alex Ballinger]

Does the Minister not think it is the height of hypocrisy for those in the last Government, who negotiated 85% of this treaty over 11 rounds, to wait until they were in opposition to make these claims, none of which they made during their negotiations?

[Luke Pollard]

I thank my hon. Friend for that. It must be quite a freeing experience, because we now know that nearly every single legacy Tory MP during the last Government—whose Ministers started the negotiations, negotiated a deal, and made statements and answered questions in this House—were not actually supporting their Front Benchers, which is what we saw, but were deeply upset with the Conservative Government. If that is their genuine position, not just their political position now, they should have raised those concerns with the Foreign Secretary at the time. They should have been clear about it, but I believe that not many of them did so, and that tells a story.

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[Alex Ballinger]

Does the Minister agree that it is completely wrong for the hon. Member for Clacton (Nigel Farage) and Reform UK to claim that President Trump did not support this deal, when he said it was a “very strong” deal that was secured for a “very long” time?

[Luke Pollard]

In support of the deal, the US Defence Secretary, Pete Hegseth, put it well when he said:

“Diego Garcia is a vital military base for the US. The UK’s (very important) deal with Mauritius secures the operational capabilities of the base and key US national security interests in the region. We are confident the base is protected for many years ahead.”

President Trump has described the deal as “very long term” and “very strong”.

That follows a rigorous US inter-agency process, involving the whole of the US security apparatus, both under the previous Biden Administration and the current Trump Administration. This involved the Department of Defence, the National Security Council and the intelligence agencies, including the CIA. Do Conservative Members say that they do not trust the assessment of the CIA, the US and all the security apparatus? The deal secures the use of the base—they are happy with it and we are happy with it. Our Five Eyes partners recognise the benefits of the treaty for our collective security. The deal is supported by Japan, South Korea and India. It is also a deal publicly welcomed by the African Union, the UN Secretary General and the Commonwealth.

I turn now to the issue of Chagossians, which needs to be raised as well. While the negotiations were necessarily conducted on a state-to-state basis, we are alive to the diverse views of Chagossians about their future, and we have the utmost respect for their past suffering.

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[Priti Patel]

Absolutely right. Of course, this Government do not like speaking about inflation for all the macro-economic reasons we know about. Inflation under this Government continues to rise, which speaks volumes about their handling of the economy.

This deal is so bad for Britain, it has left our country humiliated and weaker on the world stage. Our friends and enemies alike are laughing at the UK and Labour’s epic diplomatic failure to stand up for our national interests.

[Alex Ballinger]

The right hon. Lady says that this is an international problem for the UK, but does she not agree that the Americans, the Canadians, the New Zealanders, the Australians, the Indians and even the Pope support the deal? It is really important that our Five Eyes security partners are behind us.

[Priti Patel]

Having led Five Eyes for our country—I am very proud to have done so—it is a matter of great concern that the deal has been backed by Iran, China and Russia. I say to the hon. Gentleman that that is exactly why this is a bad deal for our country. [Interruption.] It is correct, actually, and I can point him to the references where those countries have spoken in favour of the deal.

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[Priti Patel]

I will give way once again to the hon. Member for Halesowen (Alex Ballinger).

[Alex Ballinger]

Could the right hon. Lady outline what was in the deal that the last Conservative Foreign Secretary was negotiating? The points of sovereignty and everything else were conceded by her party.

[Priti Patel]

I will now give way to the hon. Member for Kilmarnock and Loudoun (Lillian Jones).

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[Priti Patel]

The hon. Member, who was laughing and sneering at fellow colleagues earlier—that is simply not acceptable—should have listened to what I said. I will restate it for the House: there was no deal done whatsoever.

[Alex Ballinger]

Will the right hon. Member give way?

[Priti Patel]

I will not. As we have already heard from Conservative Members, we have rarely seen the methodology that the Government are now hiding behind used for any spending announcements. When the Minister winds up, I wonder if he will commit to presenting all future spending decisions using this methodology—or perhaps he could explain why the Government have singled out this large and embarrassing expenditure to be formulated in this way. That is down to the fact that they are covering up a colossal cost.

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[Priti Patel]

I am going to make progress, and I have taken plenty of interventions.

The Minister touched on the base at Diego Garcia, which is one of the most important military assets in the world. It gives us and our US allies significant global reach, but the treaty undermines that position, and the Bill contains no measures to mitigate its effects.

[Alex Ballinger]

Will the right hon. Member give way?

[Priti Patel]

I will not; I have given way plenty of times to the hon. Gentleman.

The surrender of sovereignty means that Britian will be a rule taker, taking the laws, rules and commands of Mauritius, and that restricts and impedes base operations. For example, Mauritius has signed up to the Pelindaba treaty, banning the stationing and storage of nuclear weapons; no Minister has been able to provide a definitive answer when questioned about how that may impact our security and defence, once the UK is no longer sovereign in, or able to exercise sovereign rights over, the Chagos islands and Diego Garcia.

Under the terms of the treaty, we are bound to notify Mauritius of various activities relating to our use of the base, including operations from the base against that country, and movements of our allies’ vessels. Despite heavy questioning, at no point have Ministers explained in detail how the notifications will work, and who will have access to the information.

[Priti Patel]

The hon. and learned Member is absolutely right. That is why it was important to have a debate on the Floor of the House when the treaty came together, but we did not have one. The treaty brings into question everything about security, including our ability to be as strong and secure as we need to be.

It will come as no surprise to Members to hear that now that our sovereignty over the base is being surrendered, our enemies are queuing up to—guess what?—make friends with Mauritius. Just days before the surrender treaty was signed, Russia agreed a new partnership agreement with Mauritius that includes marine research. That so-called “marine research” conducted by Russia could take place just a handful of miles away from our base. Mauritius has also been courted extensively by Iran and China for further partnerships in a range of other areas. Despite the warnings, this inept Labour Government have failed to act to safeguard our interests.

[Alex Ballinger]

Will the right hon. Member give way?

[Priti Patel]

No, I have given way to the hon. Gentleman many times.

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[Paul Holmes]

I agree with my right hon. Friend. I found it quite concerning earlier that the Chairman of the Defence Committee, the hon. Member for Slough (Mr Dhesi), relied on the fact that American counterparts in an Administration that he does not scrutinise backed the deal, so there was no need for the Defence Committee to interrogate Ministers of the Government it is supposed to scrutinise. There have been two offers this afternoon, one by my right hon. Friend the Member for South Holland and The Deepings (Sir John Hayes), and the other by my right hon. and learned Friend the Member for Kenilworth and Southam, in his expert speech. There is a scrutiny structure in this House called the Intelligence and Security Committee to which the Minister could refer this decision, and he can rest assured in the knowledge that there are expert Members across the whole House who could offer their expert opinion on the deal. The Government have chosen not to do that. That is an indictment of the transparency and the drive the Government have shown in getting the deal very quickly.

[Alex Ballinger]

The hon. Gentleman will know that the Foreign Affairs Committee had the Minister in front of us to discuss the deal, so there has been parliamentary scrutiny on this, including by other Committees, just not by the Defence Committee. On the costs, as the PPS to Lord Cameron, maybe he can say a little bit about what the cost was of the deal they negotiated at the end of those 11 rounds—whether it was higher or lower than the deal we have reached now.

[Paul Holmes]

I can tell the hon. Gentleman. Let me say it very clearly and very slowly, because I know that hon. Members have written their speeches before the debate started: zero. Zero is less than the deal the Minister is choosing. Let me repeat it very slowly for the hon. Gentleman and for Members across the House: the deal was ended. There was no deal. The negotiations stopped. There were no negotiations.

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[Sir John Whittingdale]

I cannot answer the hon. Gentleman specifically on that issue, but I can tell him that it has been absolutely clear that whatever the UNCLOS opinion is, it is not binding on this country. We will read with interest its view, but it is not one that we are necessarily required to follow.

The existing position has safeguarded the interests of this country for a very long period, so the first question one is required to ask is: why are we changing a guaranteed security status for this country by handing over the sovereignty of Diego Garcia? As my right hon. and learned Friend the Member for Kenilworth and Southam has said, it is based on opinions that have been expressed but not ones that we are required to follow.

As the hon. Member for Crawley (Peter Lamb) said, I understand that the original linkage of the Chagos islands to Mauritius that took place was regarded as a matter of administrative convenience. However, they are actually 1,250 miles apart. On that basis, when the United Kingdom agreed to the independence of Mauritius, it was separated from the Chagos islands. There was no suggestion at that time that the two should be linked and that the islands be given over to Mauritius, which, despite the linkage, had no claim and no involvement in their running.

[Alex Ballinger]

Does the right hon. Gentleman, who is my colleague on the Foreign Affairs Committee, acknowledge that by opening negotiations with Mauritius, the last Government conceded that there was a point around sovereignty to be discussed and that, certainly from then onwards, it was difficult for this Government to roll back that point?

[Sir John Whittingdale]

It had already been rolled back. The hon. Gentleman is right that the last Government began discussions because Mauritius expressed a view. However, that was on the basis that a mutually beneficial arrangement could be reached. It was concluded that such an agreement could not be reached, and on that basis the last Government ceased the negotiations. It is not a question of their being rolled back; it was this Government who chose to reopen negotiations that had been closed down by the previous Government.

I come back to the international judgments. The other one cited by Ministers on the Government Front Bench early on in the discussion, when this issue was first raised, was the risk to access to electromagnetic spectrum as a result of the ITU potentially reaching a judgment that might be based on the non-binding judgment expressed by the ICJ. There is no actual evidence that it was going to do that, but it was possible that it might, and for that reason the Government expressed the view that this was important.

I would point out that the ITU has no ability to determine the use of spectrum. The Minister, in answering a written parliamentary question in February this year, made it clear that the allocation of spectrum was a matter for sovereign states. The ITU is a sort of gentleman’s club where everyone gets together to discuss these matters, but it is not able to hand over the right to the use of spectrum from one country to another. It is also worth noting that the ITU has, over the years, been subject to considerable pressure from China, which had a secretary general of the ITU. I recall from my time dealing with issues around the ITU the real concern about how the Chinese were seeking to use the ITU, so in my view it is a good thing that the ITU does not have the power to allocate spectrum.

There are also serious strategic concerns that the Government have not yet properly addressed. As has already been mentioned, an element of the agreement involves a requirement for us to “expeditiously inform” Mauritius of any armed attack on a third state directly emanating from the base. When the Minister gave evidence to the Committee, I pressed him on whether that would require advance notification—

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[Alex Ballinger (Halesowen) (Lab)]

I thank the Minister for his speech earlier, although he is no longer in this place. We have heard clearly from those on the Opposition Benches that they are opposed to this deal, so it is first worth outlining what sort of deal they are opposed to. They are opposed to a deal that secures our vital national interest on probably the most important base in the country’s history in the Indian ocean. They are opposed to a deal that is supported by every one of our Five Eyes closest security partners. As we have heard from many of them, they are opposed to a deal that they spent 11 rounds negotiating over two years, and we have not quite heard from them why they started negotiating that deal in the first place. They spent 11 rounds negotiating it, but they have not yet told us—the shadow Minister or otherwise—why they felt it was necessary and why they think this Government might have come to the same conclusion as they did at that time. I believe, as many of us do on the Government Benches, that that dangerous rhetoric puts the security of our base in Diego Garcia at risk. It is playing politics with our national security.

I want to take us back in history for one moment to look at a similar situation. During the second world war, the UK established another airfield in the Indian ocean known as RAF Gan. RAF Gan was the southernmost island in the Maldives, and it was secured in 1942 by the Royal Navy, and then taken over by the Air Force, to secure our operations all across the Indian ocean into the far east, combating the Japanese threat we were facing there. It was such a successful base that the Japanese did not even discover its existence until close to the end of the war, once their expansion plans had ended. Later, in the cold war, it became a vital staging post for the UK and our allies to get our forces across to Singapore and other bases in the far east. In fact, my father served there in 1974, and it was a great shame that two years later we closed that base and handed it over to the Maldivian Government at the same time that we secured our base in Diego Garcia.

I mention that case in particular because it was a vital strategic secure base of ours in a similar situation to Diego Garcia. As soon as the Maldivian Government took possession of that base, the Russians began to exert influence to try to take it over. They were attempting to take over the base that we occupied—that we spent decades developing—and turn it into a secure base for the Soviet Union. They are doing exactly the same thing again on Diego Garcia. They are trying to influence the Mauritian Government to claim the base for their own use.

[Dr Evans]

Is this not the point that we have heard time and again from Government Members? This deal runs out in 99 years, and at that point Mauritius can simply close the base or hand it on to the biggest offer. We get first rights on it, but if the Chinese decide to invest hundreds of billions, we may not be able to match that. We are over a barrel. In 100 years’ time, people will be in this place having this exact debate saying, “How do we solve this problem?” Is the hon. Member as concerned about that as I am?

[Alex Ballinger]

I go back to the example of RAF Gan. The Maldivians refused the Soviet Union back in 1976, because the UK had a good reputation with them. We honoured our agreements and respected international law, and they felt that it was inappropriate for them to be seen to be supporting a country that had not done the same.

In the case of Diego Garcia, this is a situation that has been negotiated for many years. The Conservatives recognised that there was a threat to our sovereignty, because they started the negotiations. As we have heard from my hon. Friends, if we are unable to conclude a deal soon, there is a serious risk that our operations at the base would be thwarted. It would not be in 99 or 140 years after the deal; it would be in weeks or months.

[Sir John Hayes]

Will the hon. Gentleman give way?

[Alex Ballinger]

I will carry on for a moment, and then I will give way.

Despite the risks, the Conservatives have come out in opposition to this deal. The right hon. Member for Braintree (Sir James Cleverly)—the former Foreign Secretary, who is not in his place—has described the deal as “weak, weak, weak”, but it was he who started the negotiations back in 2023. He pledged that he would complete the deal in the same year, but he was unable to do so. Maybe it was his negotiating tactics that were “weak, weak, weak”, rather than anything else. For all the Conservatives’ complaining about this agreement, they have failed again to offer any insight into why they started the negotiations in the first place.

[Sir John Hayes]

The hon. Gentleman is right. Questions about why the negotiations started have been raised by my right hon. Friend the Member for Tonbridge (Tom Tugendhat), given that the national interest is the primary concern of all responsible Governments and could easily be compromised by this deal, but will the hon. Gentleman deal with this point? It has been made absolutely crystal clear in this debate that Lord Cameron, when he became Foreign Secretary, ended those negotiations. Lord Cameron is a man of immense experience, who has probably negotiated at a level beyond anyone present in this Chamber. He would have certainly taken legal advice within the Foreign, Commonwealth and Development Office before he closed those negotiations. Why does the hon. Gentleman think that Lord Cameron closed them down, and why does he think that this Government reopened them?

[Alex Ballinger]

We do not know why Lord Cameron closed them down, because the Conservatives have not released any details of the deal that they negotiated up to that point. Maybe the costs were too high because they had not negotiated a better deal, or maybe things like the 24-mile security zone were not included in the deal, but this Government have secured a better deal. It is important for us to secure our national security.

It is also worth pointing out that Conservative Governments have not looked after our national security over the last 14 years. I have served, and I have seen the damage that was caused by 14 years of under-investment and neglect of our armed forces. Our Army has been reduced to a size that has not been seen since the time of Napoleon. Service accommodation standards are scandalous, which our people do not deserve in the slightest, and the Conservatives cut the defence budget so deep that Russia felt that we were too weak to stop an invasion in Europe. I am pleased to see that this Labour Government are investing again in our armed forces and starting to fix the damage of those 14 years.

Since we are talking about investment, let me touch on the investment value of this deal. Diego Garcia’s location—far from major population centres—makes it the ultimate secure base. It is a deepwater port in a key staging area in the Indian ocean, and is vital for our submarine operations. It contains the longest runway in the entire Indian ocean, putting our aircraft in reach of Africa, the middle east and east Asia. In order to continue the operation of such a base for 99 years, we are looking at an average cost of £101 million a year. That is around 0.2% of our defence budget—less than the cost of a single aircraft carrier. As we heard from my hon. Friends, it is a better deal than the French have achieved in Djibouti for a base that is right next to the Chinese operations, and has a total cost that is less than the amount of money that the last Government wasted on faulty PPE during the pandemic.

Diego Garcia is vital for our national security—I think everybody in this place agrees with that. Two years ago, the Conservatives also agreed on the need for a deal.

[Lincoln Jopp]

I am grateful to the hon. and gallant Member for giving way. On the pricing, he said that Government Front Benchers are putting it out that this is a good deal. Would it still be a good deal if it was £35 billion or something like that?

[Alex Ballinger]

As the hon. Member will know, the official Government statistics say the cost is £3.5 billion, which is about 0.2% of our defence budget. I wonder what other assets in the entire world that may be worth 0.2% of our defence budget are quite as effective and important as Diego Garcia.

I will come to my conclusion. The last Government wanted a deal. They started negotiating a deal and conducted 11 rounds of negotiations on a deal. Now, however, because they think that they can score some political points, they are choosing to side with our adversaries. I humbly suggest that if they really had the UK’s national security in mind, they would agree with what the US State Department told the Foreign Affairs Committee on our recent visit to Washington, and some of the Conservative Committee members were in that meeting. The US State Department told us, “Thank you for securing this deal, which we think is vital for both our nations’ security.”

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[Lewis Cocking (Broxbourne) (Con)]

There are no two ways about it: this is a surrender Bill with no benefits to my Broxbourne constituents. Ministers have shamefully attempted to hide the shocking cost of this deal from the British people and the public at large. When the new Labour Government took office, they kept telling us in this Chamber about the pretend £22 billion black hole in the public finances. If the black hole of £22 billion that we are continually told about by the Government did exist, I could solve it overnight—don’t do this deal. This deal is £35 billion to the Mauritian Government. The Labour Government go after British family farms with the family farm tax. They go after our pensioners and take their winter fuel allowance away, and they increase national insurance contributions for businesses, to make it more expensive for them to employ people, but they could just not do this deal. They talk in fiction, and this is an absolute disgrace.

How will Mauritius spend this money? By cutting taxes for its own citizens and paying their debts. Is the Minister proud that the only income tax cuts that this Labour Government will deliver are 6,000 miles away at the expense of the British taxpayer? The last time I checked, this was the British Parliament and we are supposed to stand up for British interests, not the interests of foreign countries or foreign citizens. We should be cutting taxes here and turbocharging the economy, not giving stuff away that we already own. We already have a base, and now we are going to lease it back, as we have heard from a number of colleagues.

[Alex Ballinger]

Will the hon. Gentleman give way?

[Lewis Cocking]

No, I will not give way. There have been lots of interventions, and I am fed up with the same interventions coming from the same Labour Members. Quite frankly it does not help the debate—just because they say something several times does not make it true.

The Bill is costing us financially, but it also has security risks. China supports the deal and is welcoming Mauritius into its sphere of influence with open arms. Mauritius is strengthening relations with Iran and Russia. As a Policy Exchange report notes, it is impossible to assert with certainty how much influence China will have over Mauritius in the next five or 10 years, let alone for the 99-year duration of this lease.

We already have British sovereign territory with a base, so I cannot understand why we have done that negotiation, and why we are hurting the British people with tax rises. As I said, we are being cruel to older people by taking away their winter fuel allowance, going after farmers with the family farm tax, and going after British businesses with the increase to national insurance contributions, yet we can find money out of nowhere—£35 billion—to give to Mauritius.

In summary, I gently say to the Government that people out there know that. When we knock on doors, as I am sure we all do across our constituencies, people will say to us, “Hang on a minute. How come we are being punished? How come we have to pay more taxes, but you soon find money when it suits you?” That is why the British public have fallen out of love with this Government already. Hopefully the Government will wake up and start representing the people who they were elected to represent in this Chamber: the British public, not foreign Governments such as that of Mauritius.