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UK running out of time to boost defence as investment plan stalls, military chief warns

Published by Global Banking & Finance Review

Posted on June 5, 2026

3 min read

· Last updated: June 5, 2026

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UK running out of time to boost defence as investment plan stalls, military chief warns

Britain Faces Urgent Defence Challenges Amid Delays

By Sarah Young

LONDON, June 5 (Reuters) - Britain is running out of time to boost its defences in response to the threat posed by recent Russian actions, the country's military chief said on Friday, after months of delays to the country's Defence Investment Plan.

Rising Russian Threats and Calls for Increased Spending

"Russia is definitely raising the stakes and risks crossing a line," Chief of the Defence Staff Richard Knighton told BBC Radio. "We need to spend more on defence and do it faster."

Defence Investment Plan Delays

The Defence Investment Plan will lay out the funding for military equipment and services to ensure the armed forces move to a state of "warfighting readiness", but reports say it has been held up since last year by budget rows within government.

Government Response and NATO Summit

Prime Minister Keir Starmer confirmed on a visit to a drone factory on Friday that the plan would be published before a July 7 NATO summit, following a period of close work between government and military leaders.

"It is no exaggeration to say that we're living in more dangerous and volatile times than at any time in my life," Starmer said.

International Pressure for Increased Defence Spending

U.S. President Donald Trump, who has repeatedly called on Starmer and other European leaders to spend more on defence and become less reliant on Washington for the continent's security, is due to attend the summit.

Threats Greatest Since Cold War

THREATS GREATEST SINCE COLD WAR

Knighton said the risks and threats to Britain were greater than at any time since the Cold War, and the government needed to spend on defence accordingly.

"The challenge for ministers is to make those difficult trade-off decisions," he said.

Funding Shortfalls and Political Criticism

Media reports say military chiefs have warned Starmer that there is a £28 billion shortfall in funding over the next four years, and say that is behind the delay to the investment plan.

Starmer has pledged the largest sustained increase in defence spending since the Cold War, aiming to lift it to 3% of national output in the next parliament, but he has been criticised for not following through on his promises.

George Robertson, who served in the 1990s as Britain's defence secretary and then as chief of NATO, said in April that there was a gap between Starmer's rhetoric and action and he was "not willing to make the necessary investment" in defence.

Escalating Russian Activities and the Need for Enhanced Capability

Knighton said Russia was stepping up its threat, with more incursions into British airspace and through regular "probing, challenging, testing" of defences, as well as being behind cyberattacks, sabotage and attempts to steal technology.

"We do need to step up and enhance our capability as the threats from potential adversaries grow," he said.

(Reporting by Sarah Young; Editing by Alex Richardson, William Maclean)

Key Takeaways

  • Air Chief Marshal Sir Richard Knighton says the UK is running low on time to bolster defences as Russia’s actions escalate, calling for faster and increased military spending (itv.com)
  • The Defence Investment Plan, delayed since autumn 2025 due to budget disputes and a projected £28 billion four‑year funding gap, has unsettled defence firms—some going bust—and industry warns strategic defences are faltering (theguardian.com)
  • Defence Secretary John Healey says Prime Minister Starmer is determined to publish the Plan ahead of the NATO summit scheduled for 7–8 July 2026 (aol.co.uk)

References

Frequently Asked Questions

Why is the UK's Defence Investment Plan delayed?
The Defence Investment Plan has been delayed due to internal budget disagreements within the UK government.
What threats is the UK facing according to the military chief?
The military chief reports heightened threats from Russia, including airspace incursions, cyberattacks, and technology theft.
How much is the UK's defence budget shortfall?
Media reports indicate a £28 billion shortfall in UK defence funding over the next four years.
What has Prime Minister Keir Starmer pledged on defence spending?
Keir Starmer has pledged the largest sustained increase in defence spending since the Cold War, aiming for 3% of national output.
When is the UK aiming to publish the Defence Investment Plan?
The government aims to publish the Defence Investment Plan before the July 7 NATO summit.

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