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The Strait of Hormuz is, in the simplest terms, the world’s most important bottleneck. Roughly a fifth of global oil supply passes through a channel barely 21 miles wide at its narrowest point, and for decades Iran has used that geography as leverage. That leverage is now significantly diminished, according to US officials tracking the results of a sustained American military campaign that began in the summer of 2026.
The campaign has included airstrikes on Iranian military infrastructure, naval escort operations for commercial vessels, and a mine-clearing effort that US Central Command declared complete by late August 2026.
From 100 ships a day to a handful
Before hostilities escalated, the strait was handling somewhere between 15 and 20 million barrels of oil per day, carried by more than 100 vessels moving through the waterway on any given day. At the height of Iranian interdiction efforts, that traffic collapsed to just a handful of ships.
Iran’s campaign involved repeated strikes on commercial shipping, a strategy designed to assert authority over transit. The US military responded by targeting more than 80 Iranian sites in July 2026 alone. The objective was no longer simply deterrence. It was degradation of the specific Iranian military assets, command infrastructure, and naval capabilities that enabled interference with shipping.
Mine-clearing as the pivotal operation
Of all the operations conducted, the mine-clearing effort may prove most consequential for the long-term reopening of the strait. CENTCOM confirmed the completion of that mission by late August 2026, and the numbers attached to it illustrate why it mattered. The cleared lanes supported transit for approximately 1,500 vessels carrying roughly 750 million barrels of oil.
Mines are a uniquely destabilizing weapon in a confined maritime space. Unlike an airstrike, which happens and ends, a minefield creates persistent uncertainty. A single uncleared mine can halt traffic across an entire corridor because no commercial captain or shipping insurer will accept that risk without verified clearance.
The deployment of the USS Theodore Roosevelt to the region, announced in August 2026, reinforced the signal that the US intended to sustain its presence through the period of reopening and beyond.
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