For Iran, Hormuz Is More a Weakness Than a Weapon

Excerpt

On Monday, six weeks into its war with Iran, the United States imposed a naval blockade of the Strait of Hormuz. According to conventional wisdom, the war has made Tehran realize that its control of the strait constitutes powerful leverage. In this story line, the strait turned out to be Iran’s real nuclear weapon, its potent deterrent. Because Tehran could use this chokepoint to threaten global shipping, it was able to resist pressure from the world’s most powerful air force, reject Washington’s peace demands, and ultimately gain leverage over its nemesis. Iranian leaders have repeatedly touted that leverage, while analyses in Reuters, Time, and other outlets have declared the strait a formidable tool in Iran’s arsenal. 

But this narrative is wrong. More than any other country on earth, Iran cannot survive a sustained closure of the strait. Before the outbreak of war in late February, 20 percent of the world’s commercial shipping may have transited the Strait of Hormuz, but over 90 percent of Iran’s seaborne trade traversed this 21-mile-wide chokepoint. Even before the U.S. naval blockade, Iran was struggling severely to move shipments vital to its own economy through the passage. A blockade will inhibit Iranian exports of all kinds—oil being the most important, but also petrochemicals—as well as imports of much of the country’s grain.

Miad Maleki is a Senior Fellow at the Foundation for Defense of Democracies. From 2017 to 2025, he served as Associate Director of the Office of Foreign Assets Control at the U.S. Treasury Department.