UK raises defence alert, PM Starmer warns of dangerous global landscape

Starmer says UK must boost defence to deter war, as he unveils plans for ‘war-fighting readiness’ and innovation.

In a significant strategic shift, Prime Minister Keir Starmer has announced that the United Kingdom’s military is entering a phase of “war-fighting readiness,” unveiling a long-term defence posture that prioritises deterrence amid global instability and rising threats from Russia.

Speaking in Glasgow, Starmer revealed that the UK would "innovate and accelerate at a war-time pace," pointing to Russia’s aggression and global tensions as reasons to invest heavily in military capabilities. “We cannot ignore the threat Russia poses,” he said. “To deter war, we must be prepared for it.”

National security and economic security go hand in hand.

In a more dangerous world, with rising cost of living, we’ll bolster British defence.

We will build new weapons factories, creating skilled jobs and supporting working people across the country.https://t.co/A8AW4QtHPZ

— Keir Starmer (@Keir_Starmer) June 1, 2025

Central to the strategy is a pledge to boost defence spending to 3% of GDP by 2034, though the Prime Minister refused to commit to an earlier deadline. “I don’t believe in performative fantasy politics,” Starmer told reporters, in a veiled criticism of calls to expedite defence funding amid increasing NATO pressure.

The newly conducted strategic review, led by former NATO Secretary General Lord Robertson, has focused on the UK's readiness to respond to escalating global tensions. It includes plans for new submarines, expanded munitions manufacturing, and reaffirmed NATO-first commitments. The full review will be made public later, with Defence Secretary John Healey expected to present further details.

Opposition voices have emerged swiftly. Conservative leader Kemi Badenoch has challenged the adequacy of Starmer’s budget timeline, while the Liberal Democrats argue the UK must move faster and spend more immediately. Yet Starmer remains focused on stability, signalling a pragmatic approach in balancing fiscal caution and military urgency.