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Iran Declares Strait of Hormuz Exclusion Zone, Sanctions Ships

9/7/2026

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Summary

Story summary

Mohsen Rezaei, head of Iran’s Supreme National Security Council, announced an exclusion zone outside the Strait of Hormuz.
The zone starts at the U.S. blockade line, extends into the Persian Gulf and sanctions any ship that enters.
Daily transits fell to at most eight ships, yet about 9 million barrels of oil per day still flow.

History

Historical Context

In 1987-88 the United States launched Operation Earnest Will to shield Kuwaiti tankers and, after the USS Samuel B. Roberts hit an Iranian mine, executed Operation Praying Mantis, sinking three Iranian platforms and inflicting about $1.5 billion in losses. The combined pressure, alongside the July 3 downing of Iran Air Flight 655, pushed Iran toward a July 18 cease-fire, a precedent that frames today’s limited eight-ship transit zone.

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Story summary

Mohsen Rezaei, head of Iran’s Supreme National Security Council, announced an exclusion zone outside the Strait of Hormuz.
The zone starts at the U.S. blockade line, extends into the Persian Gulf and sanctions any ship that enters.
Daily transits fell to at most eight ships, yet about 9 million barrels of oil per day still flow.

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