The Furnace and the Missile
On 3 April, Benjamin Netanyahu stood before the cameras and made a claim that would have bewildered most industrial analysts a generation ago. Israeli airstrikes, he said, had destroyed seventy per cent of Iran’s steel production capacity. Not its centrifuges. Not its missile silos. Its steel plants. The Mobarakeh complex outside Isfahan and the Khuzestan facility near Ahvaz, two of Iran’s largest industrial sites, had been pounded into silence. The flare stacks went dark. The blast furnaces cooled. And Netanyahu was explicit about why: steel, he said, is the raw material for the weapons used against us. Missiles, drones, ships. The money machine that funds the Revolutionary Guards’ war of terror.
It was a remarkable moment. A prime minister framing steelmaking not as an economic indicator but as a military target. Not as tonnes per annum but as warheads per quarter.
Barely four months later, on the other side of the world, the Steel Industry (Nationalisation) Act received Royal Assent and Keir Starmer’s government took British Steel into public ownership. The Scunthorpe works, the United Kingdom’s last remaining primary steelmaking site, was wrested from its Chinese owner Jingye Group on national security grounds. Two thousand seven hundred jobs were saved. A sovereign industrial capability was rescued from extinction.
The two events, separated by geography and circumstance, are connected by a single idea that the West has been painfully slow to rediscover. Steel is not a commodity. It is a strategic weapon.
Israel understood this before anyone else was prepared to say it out loud. When the Israeli Air Force struck Mobarakeh, it was not performing an economic disruption. It was degrading an enemy’s ability to build the missiles aimed at Netanya and Haifa. Iran produced over thirty one million tonnes of crude steel in 2025. Both targeted plants carried links to the Islamic Revolutionary Guard Corps. Both sat under US sanctions. A former engineer at Mobarakeh told journalists that access to the site required strict security clearance, with all employees and contractors undergoing background checks. This was not an ordinary factory floor. It was a cog in a war machine, and Israel treated it accordingly.
The lesson travelled slowly. But when it arrived in Westminster, it arrived with force. The UK Steel Strategy published in March 2026 declared steel essential for defence, construction and infrastructure, including rail and energy networks. Government procurement guidance, for the first time, explicitly recognised steel as a critical sector for national security. Business Secretary Peter Kyle told Parliament that in this volatile geopolitical climate, dependence on overseas suppliers is weakness. Britain’s national interest requires the strength of British made steel.
He was right. And the Jingye episode illustrated precisely why. China’s Jingye Group had acquired British Steel in 2020 for seventy million pounds. By 2025, it reported losses of seven hundred thousand pounds per day. The government recalled Parliament on a Saturday, only the sixth such sitting since the Second World War, to pass emergency legislation seizing operational control. That was April 2025. It took another fifteen months, and a full Nationalisation Act, before the state finally took ownership. A blast furnace is not a light switch. Once it cools, relining and restarting can take months, cost hundreds of millions and, in practice, may never happen at all. Had those furnaces gone dark, the UK would have lost the capacity to produce primary steel altogether, leaving the nation’s defence supply chain, its rail network and its construction sector dependent on imports from countries whose strategic interests may not always align with Britain’s own.
Beijing’s furious response to the nationalisation confirmed the geopolitical stakes. China’s Ministry of Foreign Affairs warned that the move had severely undermined Chinese companies’ confidence in investing in the UK. The Ministry of Commerce accused London of forcibly seizing the company and disregarding Jingye’s contributions. The anger was revealing. It suggested that for Beijing, the Scunthorpe works represented something more than a loss making subsidiary.
The contrast with Israel is instructive. In December 2025, Netanyahu announced a programme to build an independent arms industry, with the explicit aim of reducing dependency on any party, including allies. The IDF’s Hoshen plan for 2026 to 2030 prioritises what the defence establishment now calls munitions independence: domestic production lines for the missiles and interceptors that Israel can no longer assume will arrive from abroad when the next war starts. The country that once built its first weapons from smuggled scrap is now one of the most self sufficient military industrial powers on earth, precisely because it learned early that sovereignty without industrial independence is fragile.
The UK is learning the same lesson late. But better late than in the emptied room where the furnaces have gone cold, the supply chains run through Shanghai, and no amount of parliamentary debate can forge a single steel rail for a single submarine. Israel’s strikes on Isfahan were a reminder that in an age of great power competition, industrial capacity is military capacity. Starmer’s nationalisation suggests that, finally, Westminster has heard the message.
The blast furnaces at Scunthorpe are still burning. The question is whether Britain possesses the political will to keep them lit, or whether the room will empty all the same.