The Resignation
Healey resigned after a dispute with Number 10 and the Treasury over the Defence Investment Plan. Reporting from the Guardian, the Financial Times and AP describes the core argument: the plan did not meet the scale of the threat, and it did not provide a credible path to the higher NATO aligned spending level ministers had previously discussed.
"The Defence Investment Plan financial settlement falls way short of what is required."
John Healey resignation letter, reported 11 June 2026The political damage is sharper because Healey was not a marginal critic. He was a loyal Starmer minister, a long serving defence specialist, and the cabinet figure expected to sell the plan. His resignation was followed by Armed Forces Minister Al Carns leaving government too. Dan Jarvis has now been appointed Defence Secretary.
In opposition, Healey criticised Conservative defence numbers as targets that existed in presentation rather than in credible financial plans. His resignation makes a structurally similar argument against the government he served: ambition without a funded plan is not a defence policy.
The Numbers
The numbers reported across the press vary because they are measuring different gaps. The narrower gap is the difference between the immediate project shortfall and the Treasury offer. The larger gap is the wider MoD funding pressure across the plan. Either way, the central point is the same: the Defence Investment Plan did not reach the level Healey and military chiefs believed was needed.
The government has argued that the settlement is fiscally responsible and sustainable. Healey's resignation letter says the opposite: that underfunding defence today stores up greater risk tomorrow.
Where the Programme Finds the Immediate Money
The programme cannot simply add an unfunded defence promise and still claim fiscal discipline. Closing the immediate gap requires reallocation inside the existing framework, with a larger move toward NATO aligned spending put to the country at a general election.
| Measure | Annual value | Source |
|---|---|---|
| Wealth levy phase one allocation | £2bn | A slower first stage of the birth bond rollout frees early wealth levy revenue without cancelling the commitment. |
| Asylum accommodation savings | £1.3bn | Faster processing and domestic centres reduce hotel costs once operational. |
| Online warehouse levy industrial allocation | £0.4bn | A portion of the levy is directed to defence industrial capacity, especially munitions and dual use manufacturing. |
| Total available | £3.7bn | Enough to close an immediate annual readiness gap of roughly £3.6bn. |
Wealth levy: phased allocation
The wealth levy reaches full maturity later in the parliament. A slower early rollout of the birth bond frees money in years one and two while preserving the full policy once revenues mature.
Asylum accommodation savings
The programme already identifies accommodation savings once domestic processing centres replace hotels. The saving follows from faster decisions rather than lower support standards.
Online warehouse levy industrial allocation
Part of the levy is redirected from general high street transition support into munitions factory and dual use manufacturing investment.
This closes the immediate readiness gap. It does not fund a full move to 3% of GDP, and it does not fund a full NATO 5% framework. Those are second term manifesto questions requiring a national mandate and a full fiscal package.
The programme answer is therefore two stage. First, close the immediate gap from year one. Second, put the bigger NATO aligned settlement to the country at the next general election.
British Industry, Phased
The money should be committed with two conditions attached to how it is spent.
British contractors first. Munitions, shipbuilding, drone manufacturing and equipment procurement funded by this commitment should prioritise UK based manufacturers and UK supply chains. This is not decoration. Domestic industrial capacity is itself a strategic asset.
Phased over the parliament. The immediate gap is funded from year one. The larger defence spending path rises as the wealth levy matures and as British factories, yards and supply chains gain the capacity to absorb the investment. Spending faster than the industrial base can deliver is not seriousness. It is another press release.
The Other Problem: Procurement Waste
Healey's resignation is about underfunding. Defence also has a delivery problem. The Ajax armoured vehicle programme illustrates both issues at once.
The lesson is not that defence should spend less. It is that defence spending needs harder gates. A programme can be underfunded overall and wasteful inside individual contracts at the same time.
The Reform: A Working Go or No Go Gate
Every major programme gets a binding cost ceiling at signature. Breach triggers a parliamentary decision: continue, renegotiate or cancel. A red rated programme cannot drift indefinitely.
Senior officials and contractor directors who sign off major milestones on contracts above £500m are named in a public register. Responsibility should not vanish into process.
A new corporate offence should cover certifying that testing or specifications have been met when they have not. Liability must reach named senior officers as well as the corporate entity.
Prime contractors on major programmes should carry performance bonds from independent insurers. If milestones are missed beyond a defined margin, the bond pays out automatically.
British Contractors: What the Rule Actually Means
A simple British company test is not enough. Some foreign owned primes operate through UK registered subsidiaries. The tests that matter are design authority, supply chain depth, intellectual property and production resilience.
Where sovereign UK capacity exists, it should be a hard requirement. Where it does not yet exist, UK supply chain content should be heavily weighted and contractually increased over time. The point is to use defence spending to grow the industrial base rather than merely buying kit abroad.
Apprenticeships in Every Major Contract
Burnham has argued that public procurement should carry apprenticeship and work placement requirements. Defence is the clearest case for that rule. A growing defence budget should create routes into skilled work in the places where reindustrialisation is most needed.
Every defence contract above a set threshold carries a binding apprenticeship and work placement quota as a condition of award. Munitions factories, shipyards and drone manufacturing facilities must show how many apprenticeships and entry level placements the contract will sustain.
Failure to meet the quota becomes a contract performance issue, reviewed alongside cost and schedule.
Where the Money Goes: Three Priorities
The Strategic Defence Review already points toward cyber, autonomous systems and industrial capacity. The programme funds those priorities so they are not crowded out by the immediate readiness gap.
One: Cyber and electromagnetic warfare
Two: Drones and autonomous systems
Three: Facilities and industrial base
What This Means for Dan Jarvis
Dan Jarvis inherits a department whose outgoing Secretary of State has just told the country that its plan is underfunded. That is not a clean handover. It is a funding crisis.
Jarvis brings military credibility as a former paratrooper. His first task is not symbolism. It is publishing a revised Defence Investment Plan that closes the immediate gap with identified money.
A Burnham government should answer Healey's resignation letter with a number, a timetable and an industrial plan. Anything less repeats the failure Healey resigned over.