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Iran Declares Persian Gulf Off-Limits to U.S. Ships Following Deadly Isfahan Strikes

Iran warns of a massive oil price spike as U.S. strikes in Isfahan kill 15 and the Strait of Hormuz blockade enters its third week.

March 15, 2026 at 6:30 AM

Tensions between the United States and Iran have reached a critical flashpoint as the naval blockade of the Strait of Hormuz enters its third week. Iranian official Mohsen Rezaee announced that the Persian Gulf is now off-limits to American ships, demanding a full withdrawal of U.S. forces to ensure regional security. This rhetorical escalation follows joint U.S. and Israeli airstrikes in Iran's Isfahan province that targeted a Revolutionary Guard command center and industrial infrastructure, resulting in the deaths of at least 15 workers. In response to the strikes, the Iranian Revolutionary Guard has issued evacuation warnings to civilians living near strategic oil ports, signaling a high probability of military retaliation. Iranian leadership warned that while the U.S. may use strategic reserves to temporarily stabilize energy markets, the continued closure of the Strait—a transit point for nearly one-fifth of the world's oil—will eventually trigger a massive spike in global prices. President Donald Trump has urged regional allies to take a more active role in protecting the waterway, emphasizing that while the U.S. seeks long-term stability and diplomatic solutions, the current threats to global trade must be neutralized. Meanwhile, the conflict continues to expand via proxies; Israeli airstrikes on Hezbollah positions in Lebanon and retaliatory rocket fire have fueled concerns among analysts that a large-scale Israeli ground invasion may be imminent.

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