Defense Secretary Pete Hegseth calls Iranian warship sinking a message that 'gloves are off' as U.S. nuclear submarine ...

A U.S. submarine sank the Iranian frigate IRIS Dena off the coast of Sri Lanka on March 4, 2026, killing 87 people in what amounts to the first American torpedo attack on an enemy warship since World ...

This story has been updated with additional information from U.S. Central Command about the sinking of an IRGCN corvette. An ...

The downing of the Iranian frigate IRIS Dena marks the first time an American submarine has destroyed an enemy warship in decades.

War Secretary Pete Hegseth announced that a U.S. submarine torpedo strike sank an Iranian warship in a first enemy ship ...

Since 1991, Navy subs have launched scores of cruise missiles in combat, but the torpedo attack off Sri Lanka is a return to form after 80 years.

A single Mk-48 torpedo achieved "immediate effect" on an Iranian frigate, which was operating in the Indian Ocean, the ...

Iran’s leadership erupted in fury Thursday after a U.S. submarine torpedoed and sank an Iranian warship in international ...

The U.S. sank an Iranian warship in international waters, Defense Secretary Pete Hegseth said Wednesday, as it intensified ...

Videos released by the Pentagon on Wednesday captured the moment a U.S. attack submarine sank an Iranian warship in international waters.

Defense Secretary Pete Hegseth confirmed a US submarine sank an Iranian warship with a torpedo — the first such attack on an enemy since World War II. As strikes intensified across the region, Iran ...

Legal experts say a U.S. submarine’s deadly attack on an Iranian warship does not appear to have violated international or American military law.