Hegseth joined Chairman of the Joint Chiefs of Staff Gen. Dan Caine at the Pentagon to provide an update to reporters on “Operation Epic Fury” in Iran.

“An American submarine sunk an Iranian warship that thought it was safe in international waters,” Hegseth said. “Instead, it was sunk by a torpedo. Quiet death. The first sinking of an enemy ship by a torpedo since World War Two. Like in that war, back when we were still the War Department. We are fighting to win.”

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Caine said that an Iranian vessel was “effectively neutralized” in a Navy “fast attack” using a single Mark 48 torpedo. He added that the U.S. Navy achieved “immediate effect, sending the warship to the bottom of the sea.”

Hegseth says US sunk Iranian warship with torpedo, marking a first since World War II

Hegseth said that the U.S. Navy sank the Iranian warship, the Soleimani. The flagship was named for Qasem Soleimani, an Iranian military officer who served in the Islamic Revolutionary Guard Corps who the U.S. killed in a January 2020 drone strike during President Donald Trump’s first term.

Split image of US torpedo slamming into Iranian warship

A U.S. submarine sunk an Iranian warship in international waters in the Indian Ocean, War Secretary Pete Hegseth confirmed Wednesday. (@DeptofWar / X)

“The Iranian Navy rests at the bottom of the Persian Gulf. Combat ineffective, decimated, destroyed, defeated. Pick your adjective,” Hegseth said. “In fact, last night we sunk their prize ship, the Soleimani. Looks like POTUS got him twice. Their navy, not a factor. Pick your adjective. It is no more.”

Map of U.S. and Israeli strikes against Iranian naval forces

This map shows U.S. and Israeli strikes against Iranian naval forces as of March 1. (Fox News)

Hegseth also told reporters at the briefing that the U.S. and Israel will soon achieve “complete control” over Iranian airspace after Iran’s missile capabilities were drastically diminished in the four days of fighting.

US ‘WINNING DECISIVELY’ AGAINST IRAN, WILL ACHIEVE ‘COMPLETE CONTROL’ OF AIRSPACE WITHIN DAYS, HEGSETH SAYS

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“More bombers and more fighters are arriving just today and now, with complete control of the skies, we will be using 500 pound, one thousand pound and 2,000 pound laser-guided precision gravity bombs, of which we have a nearly unlimited stockpile,” he said.

Pete Hegseth and Dan Caine

Defense Secretary Pete Hegseth and Chairman of the Joint Chiefs of Staff Gen. Dan Caine, speak during a press briefing at the Pentagon, Wednesday, March 4, 2026, in Washington. (AP Photo/Konstantin Toropin) (AP Photo/Konstantin Toropin)

The war has killed more than 1,000 people in Iran and dozens in Lebanon, while U.S. officials said six American troops were killed in a fatal drone strike in Kuwait.

Thousands of travelers have been left stranded across the Middle East.

Map showing security updates for Americans in Middle East region

This map shows security and travel updates for Americans regarding countries in the Middle East region. (Fox News)

Caine told reporters that the U.S. military is helping thousands of Americans stranded in the Middle East after the U.S. State Department urged citizens to leave more than a dozen countries.