Trump Announces US Naval Blockade of Strait of Hormuz After Failed Iran Talks

Apr 12, 2026

President Trump declared a US naval blockade of the Strait of Hormuz following collapsed peace negotiations with Iran, claiming US forces destroyed all 28 Iranian mine-laying boats, though Iranian state media denied any US ships passed through. The blockade targets one of the world's most critical oil chokepoints, through which a large share of global oil flows, causing hundreds of ships to remain stuck and driving up US gasoline prices despite limited American dependence on the oil. The military escalation occurred simultaneously with historic diplomatic talks in Islamabad, where Vice President JD Vance led the highest-level US-Iran contact in over five decades aimed at ending their six-week conflict. Iran warned it would attack any US vessel entering the strait within 30 minutes, prompting at least one US destroyer from UAE's Fujairah port to turn back after the threat.

Conflicting claims about US naval operations in the Strait of Hormuz

▪Donald Trump claimed on social media that US forces had begun clearing the Strait of Hormuz and destroyed Iranian mine-laying boats.
▪Donald Trump claimed all 28 Iranian mine-dropper boats were sunk.

Iranian warnings and US military response

▪Iran warned it would attack any US vessel entering the Strait of Hormuz within 30 minutes.

Impact on global oil markets and energy supply

▪Donald Trump said empty oil tankers were heading to the United States to load oil.

Diplomatic efforts amid military tensions

▪Vice President JD Vance represented the US delegation at the Islamabad talks with Iran.
▪The Islamabad meeting was the highest level contact between the US and Iran in more than five decades.