UK Treasury Criticized for Viewing Defense Spending as a Drain, Not Growth Driver

The UK Treasury has been accused of viewing defense spending as a financial burden rather than a catalyst for economic growth, according to former defense secretary John Healey.

Healey resigned from his cabinet position following disagreements over a protracted military spending plan, which he stated was one of the final issues contributing to Sir Keir Starmer's leadership challenges. A recently released Defense Investment Plan (DIP) outlines an increase to £15 billion, but requires an additional £4.7 billion in the upcoming budget.

Speaking on the BBC's Political Thinking podcast, Healey attributed the Treasury's resistance to higher defense expenditure and suggested a lack of acknowledgment of the UK's NATO obligations. At a NATO summit in The Hague in June 2025, member nations committed to allocating 5% of their Gross Domestic Product (GDP) to defense and security, with 3.5% designated for core NATO-qualifying defense by 2035.

The initial DIP proposed core defense spending of 2.68% by 2030. Healey advocated for a commitment of 3% by 2030, a stance that contributed to his resignation. While the latest DIP shows a marginal increase of 0.02% of GDP, the document indicates the government still projects spending at 2.7% by 2030, falling short of Healey's required figure.

Healey stated that the Treasury ultimately blocked increased spending, describing its approach as a "paradox" where talented officials operate under an "orthodoxy that's a dead hand on dynamic government."

Having served as a Treasury minister under former Prime Minister Gordon Brown, Healey expressed his belief that the defense sector, particularly in defense technology, can serve as an engine for economic growth and reindustrialization. He argued that the Treasury was "in denial" regarding the UK's commitments to NATO and its own populace, noting that the planned expenditure of 3% was not anticipated until 2034-2035. "The Treasury still often sees defence as a drain on public spending and not the driver of economic growth that we've demonstrated in two years," Healey said.