On a morning when oil tanker captains were already charting detours around the Persian Gulf, the United States launched a fresh wave of strikes against targets in multiple Iranian cities. The attacks marked a significant escalation in a confrontation that has, in recent weeks, moved from diplomatic cables and back-channel talks to open military exchanges. For the roughly 20 percent of the world's traded oil that ordinarily passes through the Strait of Hormuz, the timing could hardly have been worse. Tehran had made its position clear before the missiles flew.

Iranian officials insisted that their grip on the strait — the narrow waterway separating Iran from Oman and the United Arab Emirates — would not be loosened by foreign pressure. That chokehold, which Iran has long maintained as a strategic card, is now the central obstacle to any negotiated settlement. Negotiators on both sides had reportedly come close to a framework in the preceding days, only for talks to stall once more over precisely this demand. The strikes land against a backdrop of rising economic anxiety across Asia and Europe, where governments dependent on Gulf energy imports have been watching the standoff with increasing alarm.

South Korea, Japan and several European Union member states have each issued statements urging restraint, while privately pressing Washington for clarity on its end-game.