The War Iran Won Wrong

Five weeks later Admiral Reinhard Scheer submitted his assessment to the Kaiser. The fleet, he concluded, could not force a favorable peace. Whatever it had managed off Jutland it could not repeat at scale, and the British blockade would hold regardless. His recommendation was to shift to unrestricted submarine warfare. Germany did so in February 1917. The United States declared war that April. The High Seas Fleet never again sought a decisive engagement, and when it was finally ordered to sea in October 1918, the crews at Wilhelmshaven mutinied rather than sail.

Alfred von Tirpitz had built that fleet on an explicit doctrine. He called it the Risikoflotte — the risk fleet. The point was never to defeat the Royal Navy. The point was to be expensive enough to fight that Britain would prefer to negotiate. The whole asset was the not-fighting. Jutland converted a risk into a result, and the result turned out to be smaller than the risk had been.

That is the shape of what has happened to Iran in the Strait of Hormuz this year. The post-war assessments now landing in Washington have the conclusion right. Most of them have the mechanism wrong.

The Closure Worked. That Was the Problem.

Start with what the closure actually did, because it was not nothing.

Operation Epic Fury opened on February 28 with coordinated American and Israeli strikes on Iranian military and nuclear infrastructure, killing Supreme Leader Ali Khamenei. Within seventy-two hours the IRGC was broadcasting passage warnings on VHF and had formally declared the strait closed. Ship-tracking data showed traffic down roughly seventy percent almost immediately. Brent crossed $100 on March 8 for the first time in four years and peaked at $126. Protection-and-indemnity cover was withdrawn on March 5; war-risk premiums, which had sat around 0.125 percent, rose four- to sixfold in a week. By late April something like two thousand vessels and twenty thousand mariners were stranded inside the Gulf. Rapidan Energy Group, the Washington consultancy, called it the largest oil disruption on record — three times the 1973 embargo.

Iran had spent four decades telling the world it could do that. It did it. On any reasonable reading of the threat, the threat was true.

Then look at the second half of the tape.

Crude moving out through Hormuz: about 1.6 million barrels a day in May, about 4 million in June, about 5 million in July. Under a U.S.-led escort operation, roughly half of pre-war volume is now transiting a waterway that is formally closed. By August 25 the Navy had cleared more than a hundred suspected mines using underwater drones and private contractors — a mine-clearance problem that in 1988 required a fleet has become, in 2026, a procurement line with a throughput rate.

The tempting explanation is that Iran's leverage lived in the unmeasured, and that measurement destroyed it. That explanation is too clean, and the numbers above refuse it. War-risk premiums sat at 0.125 percent before February, which is to say Hormuz was already priced. Lloyd's had a rate. Every charterer had a model. Nothing about the strait was mysterious on February 27.

What changed is not that somebody finally looked. It is that somebody paid.

"Escorted at enormous public cost" is the phrase the assessments use in passing, and it is the whole event. Half of pre-war volume moves through a closed strait because the United States Navy is buying it through — carrier presence, minesweeping contracts, drone operators, convoy scheduling, a standing appropriation that converts a military threat into a recurring line item on a budget that renews annually and does not get tired. Iran's leverage did not evaporate into knowledge. It was purchased, at a price, by the only party in the transaction that could carry the price indefinitely.

Gazprom learned the identical lesson in eighteen months, and for the identical reason. European gas dependence on Russia was treated for thirty years as a structural condition rather than a policy choice. Moscow exercised it in 2022. Europe then bought its way out: Germany commissioned its first floating LNG terminal in under two hundred days and put it at Wilhelmshaven, which is a coincidence I did not arrange and cannot improve on. The dependence did not turn out to be false. It turned out to be procurable — a capital expenditure that a rich continent under pressure could authorize in a single budget cycle.

A chokepoint's leverage is not a function of its geography. Seventeen miles is seventeen miles; the geography has not moved. Leverage is a function of what it would cost somebody else to route around you, and whether they can afford it.

Iran Has Run This Play Before, In This Water

The Tanker War ran from 1984 to 1988 and is the closest available precedent, which makes its omission from most of the current commentary notable.

Iran mined the Gulf. The United States reflagged Kuwaiti tankers under Operation Earnest Will in 1987 and escorted them — which was, then as now, a purchase: American hulls and American appropriations spent to restore commercial margins for other people's cargo. On April 14, 1988, the USS Samuel B. Roberts struck an Iranian mine. Four days later, Operation Praying Mantis destroyed roughly half of Iran's operational navy inside a single day. On July 18, Tehran accepted UN Security Council Resolution 598, which Khomeini described as drinking from a poisoned chalice.

Same water. Same instrument. Same counter-purchase. The only material difference is the clock. In the 1980s the counter took four years to assemble. This year it took weeks — because the escort now exists as doctrine rather than improvisation, and because the drones do in an afternoon what minesweepers did in a season. The unit cost of the counter has fallen by an order of magnitude in thirty-eight years, and every dollar it falls takes something off the value of the threat it answers.

The Chokepoint Nobody Bought

That rule would swallow everything if left alone, and the case against it has been running in adjacent water the entire time.

Since November 2023 the Houthis have done to Bab el-Mandeb roughly what Iran did to Hormuz: attacks on commercial shipping, a seized car carrier, vessels sunk, crews killed. The United States assembled an escort coalition — Operation Prosperity Guardian — the following month. Same instrument, same counter-move, same patron behind the party doing the shooting. And more than two years on, Maersk and Hapag-Lloyd still route around the Cape of Good Hope. Bab el-Mandeb was never re-priced. It was abandoned.

If exercising a chokepoint deterrent spends it, the Houthis should have spent theirs in the first quarter of 2024. They did not, and the reason is not that they out-strategized the IRGC. The reason is that there is a road around the Red Sea and there is no road around the Persian Gulf.

Cape routing adds roughly ten days and a fuel bill. It is expensive and it is available, and the moment it is available the arithmetic inverts for everyone: the escort has to be cheaper than the detour, or nobody buys the escort. At Bab el-Mandeb the detour was cheaper, so the coalition stayed thin and the chokepoint stayed shut. At Hormuz there is no detour. A fifth of the world's seaborne oil leaves through that door or it does not leave. Which meant that whatever the escort cost, somebody was going to pay it, because the alternative was not a longer voyage — it was no voyage.

Iran's chokepoint mattered too much to stay closed. The Houthis' matters little enough to stay closed indefinitely. That is not a paradox. That is the pricing.

Now push in the other direction, at the hardest case available.

In August 1945 the United States used the only strategic weapon whose entire value was supposed to lie in never being used. By the logic of the risk fleet, that should have spent it. It did the opposite. Eighty-one years of nuclear strategy rest on a demonstration that confirmed the threat rather than falsifying it. And on the buyability rule the exception dissolves: nobody could procure a counter. Seven decades and several trillion dollars of missile defense are the record of trying, and the record is that the counter is not for sale at a price any state has been willing to pay. A deterrent whose neutralization cannot be bought does not decay on exercise. It appreciates.

So the rule is not that using a deterrent spends it. The rule is: a deterrent survives being exercised only when the counter cannot be bought, or when buying it costs more than conceding.

That version has a handle you can grip before the fact instead of after. It asks three questions, all answerable in advance. What would the counter cost to build? Who would have to authorize the spending? And what is the price of the alternative to spending it? Tehran could have run those numbers in January. The answers were: a few billion a year, a legislature that has never once declined to fund a Gulf deployment, and an alternative priced at global recession. The demonstration did not reveal a ceiling nobody could have known. It confirmed a bill somebody was always going to pay.

The honest complication is that this is a finding about six months, not a law of physics. If the escort takes a catastrophic loss, if mine-laying outpaces clearance, if a single LNG carrier goes up in the channel and the underwriters simply stop quoting, the cost of the counter jumps and the calculation reopens. Deterrence is a belief about prices, and prices move. That is the case for saying Tehran has not lost this yet, and it is not a stupid case. What it does not touch is the direction. Every month the strait stays partially open under fire is a month of the counter getting cheaper to run.

The Instrument After the Instrument

One more thing about Scheer's report, because it is the part that gets skipped.

It did not recommend restraint. A commander who has just discovered that his primary instrument is worth less than advertised does not conclude that he should ask for less. He concludes that he needs a different instrument. Scheer's answer was unrestricted submarine warfare against neutral shipping — an option available all along and rejected as too indiscriminate, which became acceptable at exactly the moment the discriminate option was revealed as insufficient. It also lost Germany the war, by bringing in the one power that could break the stalemate.

This is the reliable sequel. A state that spends a purchasable deterrent reaches for an unpurchasable one, and the unpurchasable ones are unpurchasable precisely because there is nothing to escort.

Naming the candidates is uncomfortable but not speculative, because the inventory is public. The enrichment program Epic Fury was launched to destroy and did not finish. Proxy capacity outside the Gulf, where there is no corridor to organize a convoy through. And Gulf-state energy infrastructure — on September 14, 2019, a few drones and cruise missiles against Abqaiq and Khurais took roughly 5.7 million barrels a day off the market in a morning, about half of Saudi output, more than mining a strait accomplishes in a month. You can convoy a tanker. Nobody has worked out how to convoy a refinery.

That is not a moral claim about Iranian intentions. It is an observation about what remains in the inventory after the escortable thing has been priced. They will find something. They always do.

Who Is on the Ledger

Twenty seafarers are confirmed dead in the strait this year, thirty-five injured, one still missing, along with a port worker. Filipino, Indian, Greek, Thai crews on ships flagged in places with no stake in any of this.

Everything above is an accounting argument. It says a chokepoint threat converts into a cost, and the party who can carry the cost wins. That is true, and it is incomplete, because the cost is not carried only in dollars. An escort operation is paid for twice — once by a legislature that appropriates it, and once by the crews who sail the corridor while it is still being cleared. Only one of those payments appears in the tally, and it is not the one settled in bodies.

So the assessments are right. Iran is losing the strait, and it is losing it because it used it. But the correct posture toward that finding is not satisfaction. A cornered power with a spent card and a dead Supreme Leader is a power conducting an inventory, and inventories end in decisions.

Whatever it decides will be quoted in dollars and settled, in part, by people who appear on neither ledger. They were not on Tehran's. They were not on Washington's. That is not an oversight in the arithmetic. It is what makes the arithmetic possible.