Starmer Repeats 3% Defence Pledge Before NATO Summit

Downing Street’s readout is short, but the message is not. On Friday 13 June 2026, the Prime Minister spoke with NATO Secretary General Mark Rutte and told him the UK would publish its Defence Investment Plan before the NATO summit in Ankara. Both men agreed that allies need to do more, and do it faster, as security threats change. (gov.uk) If you hear a phrase like 3% of GDP on defence and feel it sounds distant or overly technical, you are not alone. This is really a story about how much of the country’s economic output the government wants to devote to military and security priorities, and about how the UK wants to present itself inside NATO ahead of a major summit. (gov.uk)

NATO is the political and military alliance that brings together 32 countries in Europe and North America. Its founding idea is collective defence: an attack on one ally is treated as an attack on all. The alliance says its next summit will take place in Ankara, Türkiye, on 7 and 8 July 2026, which is why calls like this matter now. (nato.int) **What this means:** this was not just a routine check-in. Summit meetings are where heads of government set direction, announce new plans and show whether promises made at home match what allies expect abroad. (nato.int)

The key line in the readout is Sir Keir Starmer’s renewed promise to reach 3% of GDP on defence in the next Parliament. In plain English, GDP is the size of the economy, so this target is not a fixed cash number. It is a commitment to keep defence spending at a set share of national output, which would usually push the cash total up as the economy grows. (gov.uk) That matters because percentage targets can sound smaller or bigger than they really are. They are meant to help allies compare effort using the same yardstick, even when countries have very different economies and very different defence budgets. NATO’s own spending pages use GDP share as the common measure for that reason. (nato.int)

There is also a second layer here that can be easy to miss. For years, the best-known NATO benchmark was 2% of GDP on defence, first backed politically at the 2014 Wales Summit. NATO says all allies met or exceeded that older target in 2025. (nato.int) But the alliance has moved on. NATO says allies agreed at the 2025 Hague summit to aim by 2035 for a broader 5% commitment, made up of at least 3.5% of GDP on core defence and up to 1.5% on related security and resilience spending such as protecting infrastructure and strengthening the defence industrial base. So the UK’s 3% pledge sits above the old 2% mark, but it is not the same thing as the alliance’s newer 5% formula. (nato.int)

The government’s own trail on this goes back further than the 13 June 2026 call. In February 2025, Number 10 said the UK would raise defence spending to 2.5% of GDP from April 2027, with an ambition to reach 3% in the next Parliament. The same statement said a change in the way spending is counted would put the 2027 figure at 2.6% on the updated measure. (gov.uk) Downing Street also framed national security as the government’s top priority and said the pledge would be backed by ‘hard-edged decisions’. **What this means:** the jump to 3% is not a brand-new promise, but a restatement of a goal the Prime Minister wants allies to hear clearly before Ankara. It also hints at budget choices still to come, because moving from 2.5 or 2.6 to 3% is not just rhetoric; it needs money, timing and political trade-offs. (gov.uk)

So what does extra defence spending usually pay for? According to the February 2025 government statement, ministers linked the increase to rebuilding stockpiles and munitions, modernising the armed forces, speeding up cutting-edge capabilities and supporting intelligence and resilience against hybrid threats such as cyber-attacks and sabotage. (gov.uk) That is why a target like 3% is about more than ships, jets and tanks. It can shape investment in cyber defence, research, supply chains, training and the industries that make military kit in the first place. For readers trying to make sense of the jargon, the simplest way to read this is: higher percentages are a way of signalling how much priority a government is prepared to give security when money is tight. (gov.uk)

For now, the official readout gives us three things we can say with confidence. Mark Rutte welcomed the UK’s increased defence investment, Sir Keir said the Defence Investment Plan will be published before the summit, and both men agreed to stay in close contact. (gov.uk) The next question is the one readers should keep in view: what, exactly, will be in that plan? Before the Ankara summit on 7 and 8 July, watch for detail on where the money will go, how quickly the UK expects to reach 3%, and how ministers explain the cost to the public. That is where a headline promise turns into something you can actually measure. (gov.uk)