The debate over the defense budget in the UK government escalated into a new crisis with the resignations of Defense Secretary John Healey and Deputy Defense Secretary Al Carns. In a letter to Prime Minister Keir Starmer, Healey stated that the defense investment plan falls far short of the level needed during these dangerous times.
The announcement of the Defense Investment Plan had already been delayed for some time. The delay was reportedly due to budget disagreements between the Ministry of Defense and the Treasury.
Healey’s Objection Focused on the Budget Plan
Healey conveyed that the plan prepared by the Treasury and presented to him on Monday projected defense spending to rise to only 2.6% next year and 2.68% by 2030. He argued that this level is insufficient to meet the UK's military commitments.
Considering the war in the Middle East, Russia’s full-scale invasion of Ukraine, and threats from Moscow, Healey expressed that the plan does not meet the necessary needs. Prime Minister Starmer responded by expressing regret over Healey’s departure but stated that the budget plan ensures sustainable and fair spending increases to keep the country safe.
Second Resignation Followed Shortly After
Just hours after Healey’s resignation, Al Carns also stepped down. A former war veteran, Carns announced he could not defend the inadequate investment plan.
Carns is considered a potential candidate in any future leadership challenge against Starmer. This departure highlighted the growing political tension within the cabinet over the defense budget debate.
Starmer Appoints New Defense Secretary
Following the resignations, Starmer appointed Security Minister Dan Jarvis as the new Defense Secretary. Healey had served as Defense Secretary since the Labour Party came to power in July 2024.
Healey was regarded as one of the most experienced members of the cabinet. During his tenure, he played a key role in increasing international support for Ukraine and in efforts to establish a multinational coalition to secure a potential ceasefire.
NATO and Overseas Missions Also Part of the Debate
Healey also led a multinational maritime security mission aimed at keeping the Strait of Hormuz open to shipping once the Middle East conflict ends. The government reminded that it is committed to raising defense spending to 2.5% of GDP by 2027 and 3% by 2035.
Military officials argue this timeline is not progressing quickly enough. General Richard Barrons, who led the government’s defense review, said the administration is actively moving backward by refusing to fund the review they approved.
Barrons warned this would weaken the UK’s position within NATO and damage its credibility with allies. The UK and other NATO members are under pressure from US President Donald Trump to increase military spending.
Political Impact of the Crisis Grows
Starmer’s failure to resolve the budget crisis between the Ministry of Defense and Treasury Minister Rachel Reeves has fueled speculation that he is losing influence within his party. Since taking office, he has faced various political setbacks.
It is considered that Manchester Mayor Andy Burnham could challenge Starmer’s leadership if he returns to Parliament in the June 18 by-election. The defense budget dispute remains one of the most pressing issues facing the government.
