Full Breakdown
UK Defence Ministers Resign Over Disputed Defence Investment Plan
6/12/2026, 4:48:57 AM
The Resignations and Their Immediate Context
On 11 June 2026 Defence Secretary John Healey submitted a resignation letter to Prime Minister Keir Starmer, citing that the government’s Defence Investment Plan (DIP) “falls well short of what is required for defence and the country at this dangerous time.” Hours later, Armed Forces Minister Al Carns followed suit, stating that the budget “was written for a calmer world” and that “Number 10 will not listen, so I am resigning as minister for the armed forces.” Their departures intensified pressure on Starmer amid a looming leadership challenge and an upcoming by-election in Makerfield.
Background: Prolonged DIP Negotiations
For months the Ministry of Defence and the Treasury have been locked in talks over how quickly to raise defence spending. The DIP, originally due in late 2025, was delayed repeatedly, with the latest settlement presented to Healey on a Monday. The plan proposes a modest rise to 2.68 % of GDP by 2030, with additional funding back-loaded after that date. NATO has set a target of 3.5 % of GDP by 2035, a benchmark the UK has yet to meet.
Key Figures
- John Healey – Defence Secretary since the Labour victory in July 2024; long-time ally of Starmer.
- Al Carns – Armed Forces Minister, responsible for equipment procurement.
- Keir Starmer – Prime Minister, defending the DIP as “unprecedented” and “sustainable.”
- Rachel Reeves – Chancellor, overseeing Treasury negotiations.
- Tan Dhesi – Chair of the Commons Defence Committee, urging serious consideration of Healey’s warning.
Timeline of Events
- Monday – Healey receives the full DIP settlement.
- 12:09 BST – Healey publicly announces his resignation on X, attaching his letter.
- 13:34 BST – Carns references “issues” in the defence department but does not resign.
- 14:00 BST – Government source defends Starmer’s decisions.
- 18:00 BST – Starmer replies to Healey, promising the plan will “provide the resources our military needs.”
- 20:18 BST – Carns submits his resignation letter to Starmer.
Data & Statistics
- Current defence spending: ? 2.6 % of GDP (? £70 bn annually).
- Proposed DIP increase: 2.68 % of GDP by 2030, with a further rise to 3 % if Labour wins the next general election, and 3.5 % by 2035 per NATO guidance.
- The DIP’s extra support is “back-loaded” after 2030, according to Healey’s letter.
Official Statements & Responses
Starmer’s office said the forthcoming plan will deliver “an unprecedented increase in defence spending” in a “sustainable and fair” way, avoiding “irresponsible borrowing.” The Defence Committee, led by Tan Dhesi, called the resignation “a grave moment” and urged the government to treat the warning with “the utmost seriousness.” The Ministry of Defence noted that the plan will be published before the NATO summit in Turkey on 7 July.
Criticism & Opposition
Opposition voices, including senior defence industry representatives, argue the delayed DIP prevents long-term procurement and threatens operational readiness. Conservative MP Kemi Badenoch accused Starmer of “paralysis” and of prioritising welfare over defence. Liberal Democrat leader Ed Davey called the situation a “wake-up call” for the Labour leadership.
Conflicting Reports & Gaps
Sources differ on the exact percentage increase: some cite a rise to 2.68 % in 2030, while others mention 2.6 % next year with “additional support only after 2030.” The timing of the DIP’s publication is also inconsistent—some reports say it will be released before the July 7 NATO summit, others note it was originally due last autumn and has been postponed repeatedly.
Verbatim Quotes
- “This is a letter I never expected to write, and I do so now with great reluctance.” — John Healey, Defence Secretary
- “you have been unable, and the Treasury has been unwilling, to commit the resources that the nation needs to defend the country at this time of rising threats.” — John Healey
- “Number 10 will not listen, so I am resigning as minister for the armed forces.” — Al Carns, Armed Forces Minister
- “I will always do what is needed to keep our country safe.” — Keir Starmer, Prime Minister
What’s Next
Starmer has pledged to publish the DIP before the NATO summit on 7 July, while the Labour Party prepares for the Makerfield by-election on 18 June, a potential launchpad for a leadership challenge. The resignations have triggered a cabinet reshuffle and renewed scrutiny of the Treasury-Defence funding framework, with the next few weeks likely determining whether the government can reconcile fiscal constraints with NATO-mandated defence targets.
