US Navy Begins Blockade of Strait of Hormuz to Cut Off Iranian Ports

The measure took effect on Monday, April 13, 2026, at 10 a.m. Eastern Time, following the failure of recent peace talks between the US and Iran. US Central Command announced that the blockade will be enforced against all maritime traffic to and from Iranian coastal areas and ports. The move is part of efforts to stop Iran from profiting from shipping in the vital waterway amid ongoing tensions in the region.

President Donald Trump stated that the US Navy will block any vessels trying to pass through the strait in connection with Iranian ports. He explained that the goal is to prevent Iran from charging high tolls or controlling traffic while the waterway remains restricted. Trump added that the blockade is temporary and that full access for all shipping could be restored once conditions improve. The action comes after Iran had largely closed the strait to many vessels since late February 2026, during the wider conflict with the US and Israel.

The Strait of Hormuz is one of the world’s most important shipping routes, carrying a large share of global oil supplies. Any disruption here can quickly affect energy prices and international trade. Since the blockade began, concerns have grown about possible rises in oil costs and delays for tankers. US officials say the Navy is also working to clear mines and improve safety in the area so that normal shipping can resume without threats.

This development has heightened worries about further escalation in the Middle East. Iran has warned of strong responses to any interference with its interests, while the US maintains that the blockade is necessary to protect free navigation and reduce Iran’s ability to use the strait for leverage. As the situation unfolds, shipping companies and energy markets are closely watching events, and many governments are calling for calm and a quick return to open passage through this critical chokepoint.