The threats to shipping in the Strait of Hormuz are complicating President Trump’s calculations about how and when to end the war.

Mojtaba Khamenei struck a defiant tone and signaled that Iran would not back down in a war that has spread across the Middle East.

Follow live NBC News coverage and latest updates on the Iran war, as Tehran attacks ships around the Strait of Hormuz, the ...

Iran's new Supreme Leader Mojtaba Khamenei has said all U.S. military bases in the Middle East should close immediately as those bases will be attacked.

The Strait of Hormuz, a vital waterway used to carry shipments of oil to countries around the world, is a point of contention ...

Governments are working on plans to unblock the Strait of Hormuz, a vital oil choke point. The Iran war has effectively closed the waterway and pushed up gasoline prices.

Ayatollah Mojtaba Khamenei also called on Gulf Arab states to “shut down” U.S. bases.

President Trump says he'll end the war soon, when he wants to, as Iran hits ships in and near the Strait of Hormuz and warns U.S.-linked banks will be next.

Iran's Supreme Leader Ayatollah Mojtaba Khamenei said Thursday that the leverage of closing the Strait of Hormuz should be used and that Iran’s attacks on Gulf Arab neighbors will continue.

Iran's state media issued what it said was a statement by Iranian Supreme Leader Mojtaba Khamenei, vowing to keep the Strait ...

Iran has effectively closed the Strait of Hormuz as the U.S. and Israel continue airstrikes in the country, triggering what's being described as the "largest oil disruption in history." ...