Dan Jarvis RUSI speech on UK defence and Ukraine

Dan Jarvis used his first speech as Defence Secretary at the RUSI Land Warfare Conference in London on 23 June 2026 to send a calm but firm message: Britain is in a more dangerous period, troops are already deployed around the world, and his first duty is to the people serving now. He told the audience he had been in the job for just 12 days, after being appointed on 11 June, and framed the moment less as a change of title than a return to a world he knew from his years in uniform. (gov.uk) If you are new to defence speeches, this is the key place to start. Ministers are not only announcing policy; they are also telling service personnel, allies and industry what kind of leadership to expect. Jarvis’s tone was that of someone trying to reassure the workforce first and argue about budgets second. (gov.uk)

He spent much of the speech on the Defence Investment Plan, usually shortened to DIP. **What this means:** this is the document that decides what gets bought, what gets delayed, what gets retired and where extra money is meant to go. Jarvis said the department had been working on it for a year, that he had had only 12 days to get across it, and that he wanted to publish it before travelling to Ankara with the Prime Minister. (gov.uk) Jarvis also argued that the government inherited a difficult brief: major programmes behind schedule, delays to the nuclear deterrent upgrade and an Army reduced to its smallest size in centuries. You do not have to accept every ministerial claim uncritically to see the wider point. He was preparing the room for hard choices by saying there is no quick fix and no single review that can repair years of drift. (gov.uk)

On money, Jarvis pushed back against the idea that defence is being cut. In the official transcript, he said the annual defence budget is now £11 billion higher than when the government entered office, and he repeated the line that Britain will invest £270 billion in defence over this Parliament. (gov.uk) **Media literacy note:** that £270 billion figure needs careful reading. Full Fact says it is the planned total Ministry of Defence spend across the Parliament, not the size of the increase itself. That does not mean the budget is flat; Full Fact says defence spending is set to rise in cash terms and as a share of GDP. It does mean you should be wary when politicians use a big total to make a rise sound larger than it is. (fullfact.org)

One of the most useful teaching moments in the speech came when Jarvis turned to NATO. He said Britain would meet the promise of spending 3.5% of GDP on core defence by 2035, part of the wider national security commitment the UK set out last year. He also stressed that NATO is still the base of British security, and that Britain will keep meeting alliance commitments. (gov.uk) **What this means:** people often know Article 5, the idea that an attack on one ally is treated as an attack on all. Jarvis wanted listeners to think just as hard about Article 3, which says allies must build and maintain their own ability to resist attack. In plain English, mutual defence only works if each country has done its own homework first. (gov.uk)

Ukraine sat in the background of almost every line. Jarvis argued that warfare is changing faster than many defence systems can buy equipment, with innovation cycles now measured in months rather than years. He said artificial intelligence, autonomy and uncrewed systems are no longer future add-ons but present priorities, and the Ministry of Defence has already been signalling that shift in public: Jarvis opened a major drone testing centre in Swindon on 12 June, and on 18 June announced a £752 million package for 150,000 Ukrainian-made drones, air-defence missiles and radars. (gov.uk) That matters because the speech was not only about what Britain buys for itself. It was also about what ministers think they are learning from Ukraine’s battlefield. Jarvis’s argument was that ignoring those lessons would be reckless, especially when cheap, adaptable drones are destroying far more expensive targets and changing how armies move, hide and strike. (gov.uk)

But Jarvis was equally clear that this is not a sell-the-tanks, buy-only-drones speech. He said ground still has to be held, street by street if necessary, and that artillery and deep precision strike still matter even after the rapid spread of uncrewed systems. In other words, the lesson of Ukraine is not that older capabilities are useless. It is that armed forces need a better mix of old and new, and they need it sooner. (gov.uk) He widened the picture beyond Ukraine too. In the speech he said British forces have this year been used to protect seabed infrastructure in the High North and skies in the Middle East, and are preparing for work linked to Ukraine’s force regeneration and the Strait of Hormuz. **What this means:** the government is arguing for a force that can switch between homeland defence, alliance duties and overseas crisis response without treating any one theatre as the only one that matters. (gov.uk)

For the Army, Jarvis backed General Sir Roly Walker’s modernisation drive and said the Defence Investment Plan would support ambitions including uncrewed ground vehicles for future land forces. That is worth noticing. The speech was not just buy more drones; it was redesign land power so people, armour, artillery, software and robotic systems work together. (gov.uk) He also spent time speaking directly to defence companies. Jarvis thanked industry after what he called a difficult period, but he paired that with a warning on value for money. He said the plan would include savings and that every line of spending would be scrutinised. For readers outside Westminster, that is the accountability question to keep hold of: bigger defence budgets do not remove the need to ask whether programmes are late, overpriced or built for the wrong war. (gov.uk)

The most human part of the speech came at the end. Jarvis returned again to service personnel and their families, saying the job can be brutally demanding but also offers purpose, responsibility and belonging. That thread ran through the whole address: technology matters, alliances matter and budgets matter, but none of it works without trained people who can actually do the work. (gov.uk) If you want the short version, it is this. Jarvis is asking the country to spend more, modernise faster, learn hard lessons from Ukraine and stay closely tied to NATO, while promising that the people serving now will not be treated as an afterthought. The test will come when the Defence Investment Plan is published: that is the moment when reassuring language has to turn into real numbers, real kit and real deadlines. (gov.uk)