Defence Secretary John Healey and Armed Forces Minister Al Carns resigned from the UK government on Thursday, citing fundamental disagreements over military funding. The departures occurred during an eight-hour period following the unveiling of a decade-long defence investment plan. Dan Jarvis has since been appointed as the new defence secretary.
How the resignations unfolded
The dispute centers on the government’s proposed defence investment plan, which was presented to Healey in full on Monday, 8 June. By Thursday, 11 June, the leadership structure of the Ministry of Defence had collapsed.

John Healey announced his resignation at 12:09, stating in a letter posted on X that he had “no other option.” He argued that the funding levels fell “well short of what is required” during a dangerous period. Later that day, at 20:18, Al Carns also resigned. Carns stated in his letter to Prime Minister Keir Starmer that the changes he had advocated for were not forthcoming and that the UK could not keep pace with the changing “character of conflict.”
The government response
Prime Minister Keir Starmer addressed the resignations by defending his administration’s fiscal strategy. In a letter sent to Healey just after 18:00, Starmer expressed regret at the departure but maintained that his plan would “provide the resources our military needs to keep us safe.”
This stance was echoed by a government source at 14:00, who told the BBC that the country remains safer due to decisions made by the Prime Minister. Number 10 moved quickly to address the vacancy, announcing the appointment of Dan Jarvis as the new defence secretary at 21:03.
What happens next
With Dan Jarvis now installed as the new defence secretary, the government is likely to face pressure to clarify whether any adjustments will be made to the decade-long investment plan. The resignations leave the Ministry of Defence under new leadership during a period where, according to the departing ministers, the global environment is becoming increasingly volatile.

Parliamentary scrutiny regarding the adequacy of military funding is expected to intensify. Observers may watch to see if the government attempts to bridge the gap between its stated national interest and the specific concerns regarding the “character of conflict” raised by Carns.
Frequently Asked Questions
Why did John Healey and Al Carns resign?
Both ministers resigned due to a dispute over the government’s proposed military funding plan, which they felt was insufficient for the current security climate.
When did the government first present the investment plan?
According to the source, Healey was presented with the full defence investment plan on Monday, 8 June.
Who replaced John Healey as defence secretary?
Number 10 announced that Dan Jarvis was appointed to replace Healey at 21:03 on Thursday.
How do you believe the new defence leadership will address these funding concerns moving forward?
