President Trump announced on Sunday that the U.S. Navy would immediately begin blockading all vessels attempting to enter or exit the Strait of Hormuz, a critical global oil passage carrying approximately one-fifth of the world’s trade.
The move follows Trump’s assertion that Iran has exploited its control over the strait through illegal tolls and mine placements, effectively extorting economic gains while pursuing nuclear capabilities. U.S. officials report that Tehran has imposed an unregulated $1-per-barrel toll on oil shipments and lost track of mines it claims to have deployed in the waters.
The announcement coincides with recent diplomatic efforts between U.S. and Iranian representatives in Islamabad, Pakistan, where Vice President JD Vance led nearly 21 hours of negotiations. While Trump acknowledged progress on most terms, he emphasized Iran’s refusal to commit to abandoning nuclear ambitions as the decisive obstacle.
Iran has intensified its use of drones and missile strikes to deter oil tankers from navigating the strait since the conflict escalated. The U.S. Navy’s blockade directly addresses these actions, aiming to prevent Iran from profiting from restricted access while isolating Tehran’s economic leverage over global markets.
The decision intensifies existing economic pressures on worldwide trade already strained by ongoing hostilities and restrictions on Strait operations.