When the Strait closes, the whole world pays

The Washington Examiner reports that an Iranian drone struck a Singaporean-flagged cargo vessel navigating a so-called "safe route" through the Strait of Hormuz — a passage promoted, with evident optimism, by the United Nations International Maritime Organization. Gulf nations, the same report notes, are now insisting that any peace settlement must extend well beyond questions of nuclear enrichment and reach into the broader architecture of regional security. They are right, and the history of badly designed settlements should make us listen carefully.

I spent the years after the First World War arguing — in terms that were not always welcome — that a peace imposed without regard for the economic viability of the defeated party would eventually consume the victors as well. The indemnity at Versailles was not merely cruel; it was self-defeating, because it destroyed the purchasing power and the productive capacity of a large part of the European economy. The lesson generalizes. Any settlement — whether between great powers or between a nuclear aspirant and its neighbors — that is designed purely to extract concessions, without building the conditions under which all parties can sustain normal commerce and normal investment, is a settlement that will fail.

The Strait of Hormuz carries, by most informed estimates, somewhere between a fifth and a quarter of the world's traded oil. I did not live to see the precise scale of modern energy markets, so I mark that figure as inference rather than recollection — but the principle requires no footnote: a chokepoint threatened is a supply chain taxed, and a supply chain taxed is a cost pushed onto every household that heats a home, every factory that runs a machine, every government that must balance the energy bill against the social wage. The attack reported by the Washington Examiner is, in aggregate-demand terms, a negative supply shock looking for a place to land.

The animal spirits of investment — that blend of confidence, narrative, and managed uncertainty on which private capital formation depends — are acutely sensitive to exactly this kind of episode. Shipping insurers will reprice. Freight rates will rise. Regional investment, already cautious, will hesitate further. None of this requires a full escalation to conflict; the mere credible threat of interdiction is enough to alter the calculus of firms deciding where to commit capital for the next decade. Gulf nations pressing for a comprehensive deal are, whether they frame it in these terms or not, pressing for the restoration of the investment environment on which their own diversification ambitions rest.

What would a well-designed settlement look like? I am the last person to underestimate the difficulty of the institutional design problem — I sat at Bretton Woods long enough to know that nations entering a negotiating room bring their short-run political pressures with them and frequently mistake those pressures for permanent interests. But the minimum conditions are identifiable: verifiable restraint on the military disruption of commercial passage; a mechanism for dispute resolution that does not default to gunboat or drone; and — critically — some form of economic stake for Iran in a stable regional order, so that the incentive structure points toward participation rather than disruption. A settlement that humiliates without incorporating is not a settlement; it is a postponed conflict.

The broader point, which the Gulf nations appear to be making with some clarity, is that the nuclear question and the regional security question cannot be separated. A deal that freezes enrichment while leaving the Strait subject to drone attack at moments of political convenience is not architecture; it is a temporary arrangement waiting for the next incident. The international monetary and trading system — the whole elaborate structure of which I helped to lay one foundation at Bretton Woods — depends on predictable passage of goods. When that passage is interrupted, it is not the diplomats who pay first; it is the dockworker in Singapore, the refinery operator in Rotterdam, the consumer filling a tank in any country that cannot afford an energy price spike. Full employment and price stability, those twin obligations of responsible macroeconomic stewardship, are both undermined when the arteries of trade are held at risk.