Trump Orders U.S. Navy to Blockade Strait of Hormuz After Iran Talks Collapse

U.S. President Donald Trump has announced a major escalation in tensions with Iran, declaring that the United States will begin a naval blockade of the Strait of Hormuz following the collapse of negotiations over Tehran’s nuclear ambitions.

In a series of lengthy social media posts, Trump said he had instructed the U.S. Navy to “seek and interdict every vessel in international waters that has paid a toll to Iran,” describing such payments as illegal. He added that any ship complying with Iran’s system would no longer be guaranteed “safe passage” on the high seas.

While the president did not specify how that threat would be enforced, recent U.S. naval operations — including the boarding of vessels linked to sanctioned countries — suggest that interdictions, inspections, or seizures could be used. Trump also indicated that “other countries” may participate in the blockade effort, though he did not name any potential allies.

The move follows the breakdown of diplomatic efforts between Washington and Tehran, with both sides remaining far apart on key issues surrounding Iran’s nuclear programme. Despite Trump’s suggestion that Iran may be willing to reopen the strait, Iranian officials have consistently signaled the opposite, emphasizing their control over the vital maritime corridor as a key source of strategic leverage.

In recent months, Iran has implemented a selective restriction of traffic through the Strait of Hormuz, one of the world’s most critical energy chokepoints. Passage has largely been limited to vessels from countries considered friendly to Tehran or ships believed to have paid a reported toll of around $2 million.

The U.S. response now aims to disrupt that arrangement entirely, effectively countering Iran’s influence over the waterway. Analysts note that while this does not yet amount to a full-scale resumption of hostilities, it represents a significant escalation with potentially far-reaching consequences.

The Strait of Hormuz is a vital artery for global energy supplies, with roughly one-fifth of the world’s oil and gas passing through it. Any sustained disruption could tighten supply, drive up global oil prices, and trigger wider economic impacts.