UK Boosts Defense Spending by £15 Billion, Raising GDP Share to Highest Since Cold War
Claire Weston
Britain will add £15 billion to defence over four years, lifting military spending to 2.7% of GDP — the highest since the Cold War — with nuclear deterrence, drones and munitions as the three priorities.
Where Does the £15 Billion Go?
The four-year defence investment total rises to roughly £298 billion. Annual spending climbs from £54 billion under the previous government to nearly £80 billion by 2029.
This means → annual military spending grows by almost half in four years, the steepest ramp-up in recent British defence history.
PM Keir Starmer, speaking at drone firm Malloy Aeronautics, called the world "more dangerous and volatile" and said the increase was "entirely right."
What Are the Three Spending Priorities?
Nuclear deterrence takes the largest share: over £63 billion for submarine construction, new warhead development and 12 F-35A fighter jets.
Long-range weapons and munitions: £11 billion for cruise missiles and ammunition production lines.
Drones and unmanned ground vehicles: a dedicated allocation of over £5 billion. In plain terms = the Russia-Ukraine war proved that unmanned aerial threats are now central to modern battlefields, and Britain is paying that bill.
Is 2.7% Enough? How Far Is It from NATO's Target?
Defence spending hits 2.7% of GDP, a post–Cold War record. But NATO allies have pledged to raise core defence and related security spending to 5% of GDP by 2035, with pure military capability at 3.5%.
This means → 2.7% is on the path, but still nearly double the distance away from the finish line.
US President Trump has repeatedly pushed European allies toward a 5% target. Britain's move partly answers that pressure.
Could Political Turmoil Undercut the Spending Plan?
Former Defence Secretary John Healey resigned this month, citing the government's refusal to meaningfully increase military spending. Starmer then announced he would step down as PM, clearing the way for former Greater Manchester mayor Andy Burnham.
If Burnham takes office, he will be Britain's sixth prime minister in seven years. This reflects a rate of political turnover that is itself the biggest risk to policy continuity.
Put simply = the money is in the plan, but a new PM can mean a new set of priorities — whether the spending actually lands is the key variable markets are watching.
Content is for reference only, not financial advice.