Overview
- John Healey published a resignation letter on social media and delivered it to Prime Minister Keir Starmer on Thursday, June 11, 2026, saying ministers had failed to provide the resources needed to defend the country.
- Defence and Treasury talks have been stalled for months, a deadlock that has delayed the Defence Investment Plan designed to set multi-year spending and procurement commitments.
- The pause in the investment plan has angered the UK defence industry, which says it cannot commit to long-term programmes or investment while procurement budgets and schedules remain unclear.
- Healey had led the defence portfolio since July 5, 2024, and his public break with the Treasury and the prime minister increases pressure on the government to name a successor and state its funding priorities.
- The Defence Investment Plan is meant to guarantee future equipment orders and factory work, so its delay risks procurement gaps, job losses in suppliers, and uncertainty for military readiness; the next steps to watch are the Treasury response and the government's appointment of a new defence minister.