US cleared to use British bases for limited strikes on Iranian missile capabilities

U.K. Defence Secretary John Healey resigned Thursday after a clash with Prime Minister Keir Starmer’s government over military spending, handing the prime minister a political setback just weeks before a crucial NATO summit expected to include President Donald Trump.

His departure followed a dispute over the delayed Defence Investment Plan, the government’s long-awaited blueprint for military funding and readiness, as NATO members face renewed calls from Trump to increase defence budgets.

“John Healey’s resignation is a seismic moment for the government and the Ministry of Defence,” Ed Arnold, a senior associate fellow at the Royal United Services Institute, told News Agency.

“For the government, it creates a chain of political headaches, both in finding a replacement and in trying to get the Defence Investment Plan published,” Arnold said.

Healey had been engaged in intense last-minute talks with Starmer and Chancellor Rachel Reeves over the size of the spending commitments and the timetable for delivering the plan.

Britain’s Defence Secretary John Healey was photographed speaking with British and Norwegian naval personnel during the unveiling of the Atlantic Bastion programme in Portsmouth, England, on Dec. 4, 2025. The image was distributed by Reuters via pool coverage.

Starmer reportedly refused to set out a timeline to reach 3.5% of gross domestic product (GDP) on defense by 2035 — a promise he made to Trump at last year’s NATO summit — and would not commit to a firm date for reaching 3%.

Instead, Starmer offered Healey a deal to spend 2.68% of GDP on defense by 2030, up only marginally from 2.6% next year, Reuters reported.

“You have been unable, and the Treasury has been unwilling, to commit the resources that the nation needs to defend the country,” Healey wrote to Starmer in his resignation letter, warning that the financial constraints would “make the country less safe,” the outlet reported.

NATO Secretary General Mark Rutte, U.S. President Donald Trump and Britain’s Prime Minister Keir Starmer pose with NATO country leaders during the NATO Heads of State and Government summit in The Hague, Netherlands, on June 25, 2025. (Ben Stansall/Pool via Reuters)

“If the delay to the Defense Investment Plan was already undermining the government’s credibility on defense, John Healey’s resignation has blown a hole in its side,” Professor Kevin Rowlands of the RUSI defense and security think tank told News Agency.

“The immediate consequence is not just political embarrassment for No. 10, but a significant loss of planning certainty at a time when the British Armed Forces, the Ministry of Defense, and industry really need clarity on what will be funded, and when,” he added.

The political fallout is expected to reverberate across the Atlantic, where Washington has increased pressure on European allies to fulfill their defense obligations. Trump has frequently criticized NATO alliance members as “free riders.”

On June 3, Secretary of State Marco Rubio also told the House Foreign Affairs Committee that the upcoming Ankara summit would be the “most important meeting” in NATO’s history because there are some things “that need to be cleared up and fixed.”

He added, “The United States is still in the NATO alliance, and we’ll be there.”

British Prime Minister Keir Starmer speaking at a podium

British Prime Minister Keir Starmer increased the military presence in Cyprus following an Iranian drone strike early Monday, Feb. 24, 2026. (Kin Cheung / POOL / AFP via Getty Images))

However, U.S. officials have made it clear that patience is wearing thin.

“Ahead of next month’s NATO summit, POTUS has been clear: Allies must fulfil their commitment to spending 5% of GDP on defense,” U.S. Ambassador to NATO Matthew Whitaker posted on X this week.

Furthermore, a U.S. official noted that a U.K. funding package far lower than 18 billion pounds ($23 billion) would send a highly “negative” signal to Trump ahead of the Ankara meeting, according to The Times.

Starmer has pledged to lift spending to 3% in the next Parliament but Healey’s exit has exposed that the current strategy leaves the U.K. lagging behind key allies. By comparison, Germany plans to spend 3.7% of its GDP on defense by 2030.

“Healey knows the threats we face, he knows the capabilities and shortfalls the armed forces have, and if he believes that the financial settlement is not enough to keep the country safe — to the extent that he cannot honorably stay in post — then we are in trouble,” Rowlands added.

“While the impact will mainly be felt on Whitehall, the international implications are severe with a NATO summit just three weeks away,” Arnold noted.

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