The Estimate

On March 27, airstrikes hit Mobarakeh Steel in Isfahan — Iran’s largest steelmaker, 7.4 million tonnes per year of crude steel, approximately one percent of the country’s GDP. The strikes hit an electricity substation, an alloy steel production line, and power generation facilities. A board member said damage was “not serious.” Four days later, on March 31, a second round struck manufacturing workshops and key operational units. Satellite imagery showed fire damage across multiple production halls. Mobarakeh confirmed a “complete halt of all lines” and cited “fundamental destruction to units related to the production process.”

Khuzestan Steel in Ahvaz — Iran’s second-largest producer, 3.6 million tonnes per year — was struck on the same day as Mobarakeh’s first hit. The deputy head of operations stated that “all modules and steelmaking furnaces of this industrial complex have been damaged.” Restart timeline: six months to one year.

Combined, the two produce roughly half of Iran’s steel output. A senior Iranian official told the New York Times the strikes dealt “a significant blow to the country’s economy and will hinder postwar recovery,” noting the facilities “produce materials essential for construction and road building.”

The materials essential for construction are the materials essential for reconstruction.

The targeting was bilateral.

On March 28, the IRGC struck Aluminium Bahrain — the world’s largest aluminum smelter on a single site, 1.6 million tonnes per year — and Emirates Global Aluminium at Al Taweelah in Abu Dhabi. EGA sustained what it described as “significant damage” to its smelter, cast house, power plant, alumina refinery, and recycling plant. All entered emergency shutdown. Full restoration: up to twelve months. ALBA had already cut 19 percent of capacity on March 15 due to raw material supply disruption from the Hormuz near-closure. The GCC produces nearly one-fifth of global primary aluminum output outside China.

The IRGC also struck steel facilities in Abu Dhabi, framing the strikes as “a warning.” Both sides were targeting the same material category in the other’s territory. Steel and aluminum are not components of the current military operation. They are inputs to what comes after it.

On April 5, Trump posted on Truth Social: “Tuesday will be Power Plant Day, and Bridge Day, all wrapped up in one, in Iran.” On April 6, at the White House: “every bridge in Iran will be decimated by 12 o’clock tomorrow night, where every power plant in Iran will be out of business, burning, exploding and never to be used again.”

On April 7, the IDF struck eight bridge segments across five cities — Tehran, Karaj, Tabriz, Kashan, Qom — and railway infrastructure connecting them. Iran suspended all trains on the Mashhad and Khuzestan lines. Netanyahu confirmed: “Today we attacked the railway lines and bridges used by the Revolutionary Guards.”

The B1 bridge near Karaj had been struck on April 2. Eight dead — civilians below the bridge celebrating Sizdah Be-dar. Trump posted the explosion video.

“Never to be used again” is not a military objective under international humanitarian law. It is a reconstruction timeline stated as an aspiration.

On April 1, an Israeli strike on Mahallat killed Mahdi Vafaei, head of the engineering branch of the IRGC Quds Force Lebanon Corps. He had held the role for twenty years. He led underground infrastructure development for Hezbollah across Lebanon and Syria — the tunnels, the hardened bunkers, the cross-border conduits. The IDF spent years trying to destroy the infrastructure he built. On April 1, it destroyed the engineer.

The tunnels survive him. The institutional knowledge of how to extend them under degraded conditions does not. This is the anti-reconstruction doctrine at its most precise: not the destruction of infrastructure, but the destruction of the capacity to reconstruct it.

The target sequence across six weeks of war: steel production capacity, aluminum production capacity, transport infrastructure, engineering knowledge. Each category is not a weapon in the current conflict. Each is an input to rebuilding after it.

Both sides moved through the same categories. The IDF and US struck Mobarakeh, Khuzestan, bridges, railway lines. The IRGC struck Gulf steel, ALBA, EGA. The doctrine is bilateral. The scale differs — Netanyahu claimed on April 3 that 70 percent of Iran’s steel production capacity had been destroyed, an assertion not independently verified. Iran estimated its total war losses at $140–145 billion. No comprehensive external reconstruction estimate for either side has been published.

What can be measured is the recovery timeline. Khuzestan Steel: six months to one year. Emirates Global Aluminium: up to twelve months. Mobarakeh Steel: months. During those months, the materials needed to rebuild everything else the war destroyed — the bridges, the rail lines, the refineries, the housing, the power plants — cannot be domestically produced in Iran. The Gulf states face the same constraint in aluminum: twelve months of lost production is twelve months of imported replacement at wartime commodity prices, from supply chains that run through a strait that is still functionally closed.

A ceasefire took effect on April 7–8. Pakistan mediated. Delegations arrived in Islamabad. The formal session opened on April 11.

The targeting was already complete. The ceasefire stops the strikes. It does not reduce the estimate. The reconstruction requires steel, and the steel mills are offline. The reconstruction requires aluminum, and the smelters are shut down. The reconstruction requires bridges, and the bridges are rubble. The reconstruction requires the knowledge of an engineer who spent twenty years building underground infrastructure, and the engineer is dead.

Both sides of this war fought the current conflict and the one that follows it simultaneously. The current conflict has a ceasefire, delegations, a mediator. The one that follows — the years of reconstruction costs, recovery timelines, production gaps, and imported materials at wartime prices — has no negotiating table because it was not designed to be negotiated. It was designed to persist.

The war has a ceasefire. The estimate does not.

Sources