UK to announce £8.4bn Dreadnought submarine investment, framing defence spending as a jobs engine

The announcement

Prime Minister Andy Burnham is set to announce £8.4 billion in new funding for the UK's Dreadnought-class nuclear submarine programme during a visit to Barrow-in-Furness on Thursday. The sum is part of the already agreed programme to replace the ageing Vanguard Class boats, with HMS Dreadnought expected to enter service in the 2030s. The funding will primarily push the first vessel toward readiness, while a portion will advance the second boat, HMS Valiant, to sea trials and support construction of the third and fourth submarines.

Keeping this country safe is the first responsibility of any Government. But security is not only about what we build, it is about who builds it, and who benefits from it.

The four new submarines will be equipped to launch Trident 2 D5 ballistic missiles and powered by a Rolls-Royce nuclear propulsion system manufactured in Derby, giving them an almost unlimited operational range. The overall Dreadnought programme is valued at £31 billion, and the government plans to spend more than £63 billion on nuclear deterrence over the next four years.

Jobs and reindustrialisation

Downing Street said the new contracts will help support 18,000 extra jobs in nuclear defence by 2030 and 22,000 additional apprentices by 2035. The wider UK Defence Nuclear Enterprise already supports around 47,000 jobs, including 13,500 at the Barrow shipyard. Burnham is framing the investment as a direct response to youth unemployment: the latest data showed 1.01 million young people aged 16-24 not in education, employment or training in the three months to March, the first time the figure has passed one million since 2013.

To every young person across the country, I want you to know that there is a path for you into a reindustrialised Britain and it starts with the apprenticeships we are funding through this investment today.

On a visit earlier this week to rail manufacturer Alstom in Derby, Burnham said the education system was failing to set young people up properly and that work experience and placements were lacking. The Barrow constituency, historically a Labour-Conservative marginal, was retaken by Labour at the 2024 election.

Political context

Burnham entered office just over a week ago and immediately committed to a Nato pledge to raise defence spending to 3.5% of GDP by 2035, an increase of over £25 billion a year. The announcement also reinforces his pro-Trident credentials: he voted to build the new submarines in 2016, when the Labour party split over the issue and then-leader Jeremy Corbyn voted against. Defence Secretary Wes Streeting and Chancellor John Healey also voted in favour, though Louise Haigh, who runs the new office of the prime minister, voted no.

Healey's return to the cabinet as Chancellor carries its own weight. He resigned as defence secretary under Keir Starmer over what he called a lack of defence investment, a row that contributed to Starmer's own departure. Healey now faces the task of funding a nuclear programme that, according to the Ministry of Defence's Defence Investment Plan, will consume between 20 and 25% of the department's budget in the coming years.

The fiscal and strategic strain

The UK's nuclear deterrent carries a disproportionate budgetary burden compared to allies. The US spends about 8% of its defence budget on nuclear weapons and France 13%, while Britain's share sits at 20-25%. The New Statesman reported that maintaining the deterrent will require a national effort on a scale not seen since the Cold War. Decades of underinvestment after the Cold War left nuclear infrastructure, submarine manufacturing and maintenance shipyards to decay, and restoring them will come at extraordinary cost.

The UK also remains uniquely dependent on the United States for the long-term viability of its nuclear forces, sharing missile and reactor technology. Use of the deterrent remains under sole UK political and naval control, but the reliance on American equipment and know-how is a political reality Burnham will have to manage if he is serious about rearmament.

Staying in the nuclear game today takes up a huge chunk of the UK's defence budget.