I’m a conflict expert. Why the UK-Ukraine drone partnership is worth risking Putin’s wrath

When the UK allowed Ukraine to use British-supplied Storm Shadow cruise missiles against targets inside Russia in late 2024, Moscow predictably accused London of escalating the war and threatened retaliation.

Russia’s latest warnings over Kyiv’s use of British-made drones that “the deeper its involvement in the conflict… the higher the price it will pay” may therefore sound familiar. But there is an important difference: scale.

With a range of 250km, Storm Shadow has given Ukraine an extremely capable weapon for striking high-value targets behind Russian lines. But Britain and its allies possess finite inventories of the expensive cruise missile. Replenishing stocks takes time, money and industrial capacity, placing a practical ceiling on their use.

Long-range drones could loosen that constraint. They may carry smaller warheads and be considerably easier to intercept than a cruise missile but they are far cheaper and easier to manufacture. If Britain and Ukraine produce them in sufficient quantities, their significance will lie less in what any single drone can destroy than in the cumulative effect of repeated mass strikes deep inside Russia.

This does not make drones infinitely scalable. Production depends on components, manufacturing capacity and secure supply chains, while their effectiveness depends on overcoming Russian air defences and electronic warfare. But these differ from the finite inventories limiting cruise missiles.

The UK now has a substantial uncrewed-systems sector. Its drone programmes include the jet-powered Nyan , AR3, K3 Scout and Octopus, spanning long-range strike, surveillance, maritime autonomy and counter-drone warfare respectively. They are backed by the Uncrewed Systems Centre in Swindon, which the government describes as Europe’s “largest drone testing centre”.

Even so, no testing facility can replicate Ukraine’s situation: a live battlefield where designs are continuously evaluated against a capable enemy. According to aerospace manufacturer Tekever, this real-world experience has driven more than 100 upgrades to its AR3 surveillance drone.

Octopus takes this relationship further and is emerging as a model for UK drone manufacturing: take battlefield-tested Ukrainian designs, refine them with British engineering expertise, then mass-produce them in UK factories. Designed to counter the Iranian-designed Shahed drones Russia used against Ukrainian cities and infrastructure, Octopus is expected to be produced at a rate of thousands a month.

The UK government’s technology-sharing arrangements with Kyiv and co-leadership of the international Drone Capability Coalition extend this knowledge exchange to other systems.

This effectively inverts the traditional relationship between Ukraine and its western arms suppliers: no longer is Kyiv simply the customer. Ukraine increasingly contributes battlefield-tested designs and operational knowledge, while Britain can provide engineering expertise, industrial capacity, certification, capital and access to international markets.

But this is not the only arrangement Ukraine’s partners have adopted.