UK Nuclear Deterrent

Tanmanjeet Singh Dhesi Excerpts

Monday 2nd June 2025 Commons Chamber

[Mr Tanmanjeet Singh Dhesi (Slough) (Lab)]

(Urgent Question): To ask the Secretary of State for Defence if he will make a statement on the future of the UK’s nuclear deterrent.

[The Minister for the Armed Forces (Luke Pollard)]

I am grateful to my hon. Friend the Chair of the Defence Committee for this chance to set out the Government’s total commitment to the UK’s nuclear deterrent, which has been the bedrock of our national security for nearly 70 years. My right hon. Friend the Defence Secretary will shortly outline the details of the strategic defence review to the House, and that review will be underpinned by our nuclear deterrent, which is part of our blueprint for a new hybrid Navy, in which next-generation Dreadnought nuclear-armed submarines, and up to 12 SSN-AUKUS conventionally armed nuclear-powered submarines, will serve alongside best-in-class warships, support ships and new cutting-edge autonomous vessels, building on the £15 billion investment set out for the UK’s sovereign nuclear warhead programme in this Parliament. This is not only a manifesto promise delivered; it is our most important military capability secured for generations to come. This investment will also deliver a defence dividend of highly skilled, well-paid jobs across the country. Our nuclear warhead programme alone will create and sustain over 9,000 jobs, along with thousands more in supply chains.

To ensure that the demands of our nuclear programme can be met, we are working closely with industry partners, and are aiming to double defence and civil nuclear apprenticeship and graduate intakes. That will mean 30,000 apprentices over the next 10 years; they will be part of this historic renewal of our nuclear deterrent and our communities across the country.

The first duty of every Government is to keep their people safe. In a more dangerous world, peace and security are best achieved through deterrence and preparedness. As the son of a Royal Navy submariner, I thank our outstanding submariners who patrol 24/7 to keep us and our allies safe. We know that threats are increasing, and we must act decisively to face down Russian aggression in particular. Our nuclear deterrent is the ultimate guarantor of our security. The Defence Secretary will momentarily make a statement giving further details, but our proposals are possible only because of the Government’s historic decision to increase defence spending to 2.5% of our GDP by 2027—the largest sustained increase in defence spending since the end of the cold war. The Government have the will, the plan and the means to secure the nuclear deterrent for generations to come. We are making Britain secure at home and strong abroad.

[Mr Dhesi]

I thank the Minister for his response, and your good self, Mr Speaker, for kindly granting the urgent question.

Following the report in The Sunday Times that the Ministry of Defence is looking to purchase American fighter jets that are capable of deploying tactical nuclear weapons, it is essential that the House gets clarity on the Government’s nuclear deterrent policy—an issue of critical national importance. How have the media got hold of such sensitive information on future nuclear deterrent plans, and what steps are the Government taking to investigate the leak?

If the Government are pursuing an air-launched tactical nuclear capability, that is a huge deal. It would represent a significant shift in the UK’s nuclear posture. Indeed, it would be the UK’s most significant defence expansion since the cold war. This raises serious concerns about our sovereignty when it comes to nuclear weapons, about strategic coherence with our current doctrine, and about the principle of continuous at-sea deterrence.

Despite the defence nuclear enterprise accounting for around 20% of the defence budget, it remains largely outside meaningful parliamentary scrutiny, including by our Defence Committee. This must change, so will my hon. Friend the Minister explain how Parliament will be enabled to scrutinise changes to the UK’s nuclear programmes? Have discussions taken place with the US, and what role would it play in this capability? Will the Minister confirm that the UK will retain full operational control over any nuclear weapons? Given that tactical nuclear weapons lower the threshold for nuclear weapon use, what assessment has been made of the risks of escalation? Will the Minister confirm that only the Prime Minister would have authority to use them, and only in extreme self-defence? Finally, has there been consultation with NATO allies on this potential shift? Decisions of this magnitude must be transparent. The future of our nuclear deterrent must be based on clarity, credibility and, above all, British control.

[Luke Pollard]

I do not want to eat the Secretary of State’s sandwiches, and I am acutely aware that the statement that he is about to make—