Prime Minister Sir Keir Starmer faced immediate backlash on Tuesday after unveiling the UK's new Defence Investment Plan.
Military experts warned the £15 billion funding boost fails to adequately prepare the nation for potential conflicts.
The newly published Defence Investment Plan adds £15 billion to the defense budget, prioritizing drones and autonomous weapons.
Chancellor Rachel Reeves confirmed the final amount, which increased from an initial £13.5 billion proposal but falls far short of the £28 billion that defense officials previously stated was necessary.
Internal Disputes and Resignations
Internal disputes within Whitehall over the funding level significantly delayed the plan's publication from last year.
These disagreements ultimately resulted in the resignation of former Defence Secretary John Healey, who stepped down in protest before new Defence Secretary Dan Jarvis took over.
Co-author of the 2025 Strategic Defence Review, General Sir Richard Barrons, criticized the funding scope.
He noted that while publishing the document represents progress and contains a transformative element, the financial commitment remains inadequate for national security.
“It is still not going to crack the issue,” Barrons said on BBC Radio 4's Today programme.
He warned that the UK is falling behind both its global allies and adversaries.
“We’re not keeping up with our allies, we’re certainly not keeping up with our enemies, and we know that the US is no longer going to come and save European security in the face of a Russian threat,” he added.
Barrons emphasized that the government must prioritize defense spending even if it negatively impacts other publicly funded sectors.
“Until we come to terms with the fact that we have to find more money for defence sooner, and yes, it will be at the cost of other things we like more, we are simply not going to be ready to defend this country properly,” he said.
Government Defense Strategy
The Ministry of Defence announced that the Jarvis-led strategy will allocate £5 billion specifically toward ramping up autonomous weapons systems.
Speaking at the official launch, Prime Minister Starmer defended the plan as a necessary step forward in a volatile global landscape.
“I am proud to publish our new defence investment plan,” Starmer said.
“This plan delivers on last year’s review, but in light of the rapidly changing world, the changing nature of conflict and the imminent and growing threats we face, it goes further still.”
Starmer stated that the plan serves as a foundational platform for future administrations.
“This plan represents our best judgment of what the country needs to meet this moment and it is a platform on which I know my successor will build,” he said.
The Prime Minister further asserted that the financial injection would reverse years of systemic neglect within the British armed forces.
“That’s why we have reversed the corrosive hollowing out of our armed forces, and it’s why we’re transforming a defence programme that, frankly, for too long has been underfunded and unsuited for the threats that we face,” he said.
The newly adjusted defense strategy aims to fulfill international mandates while adapting to modern warfare requirements.