As Andy Burnham prepares to assume the office of prime minister, he faces an immediate and critical national security challenge. Senior government officials are planning to lobby the incoming leader to revive "war bonds"—a vital borrowing mechanism designed to bypass long-standing Treasury objections and inject much-needed capital into the nation's depleted military forces. This strategic initiative aims to drive defense investment well beyond the £13.5 billion currently allocated under the government's Defence Investment Plan (Dip).

This urgent appeal follows direct warnings from within the defense establishment. During the recent byelection campaign, military aides traveled to Makerfield to provide Burnham’s team with a candid assessment of the UK's severely degraded defense capabilities. While Burnham is expected to inherit a Dip that has already been signed off, military leaders and national security advocates within No 10 intend to apply consistent pressure on his administration to secure robust, long-term funding increases.

Meanwhile, outgoing Prime Minister Keir Starmer has faced internal friction over his decision to announce the Dip before the upcoming NATO summit in Ankara on July 7 and 8, just a week before he leaves office. Several Labour MPs have criticized this move, arguing that such a crucial national security blueprint should have been left to his successor. Burnham himself has previously signaled a desire to provide the Ministry of Defence (MoD) with funding that exceeds the current £13.5 billion proposal.

The debate over the adequacy of the nation's defense budget reached a boiling point earlier this week when John Healey resigned as defense secretary. Healey’s resignation, which brought Starmer’s premiership to the brink, was a direct protest against a defense plan he argued was fundamentally inadequate for the nation's security needs. Burnham has since held targeted discussions with Healey, demonstrating a shared concern over the current state of military funding.

While Burnham’s allies suggest he may accept the finalized Dip if minor funding increases are secured to satisfy military leadership, his team has reserved the right to reopen the investment plan. This is particularly true if chronic issues remain unaddressed, such as historically mismanaged programs like heavy armor and tank investments. For security advocates, ensuring these procurement failures are corrected is essential to restoring the military's combat readiness.

To fund this vital reconstruction, proponents are turning to the concept of defense bonds, which would allow the state to borrow directly for military modernization. The Treasury has historically blocked this approach, warning of the macroeconomic impacts of increased national debt. However, sources confirm that the government previously came close to issuing these bonds under the influence of figures such as Starmer's former chief of staff, Morgan McSweeney, before fiscal bureaucrats intervened.