Secretary of Defense Pete Hegseth called the sinking of an Iranian warship with a single Mk48 torpedo a "quiet death." ...

Two U.S. Navy fast-attack submarines dove beneath the Arctic ice cap on March 7, marking the 100th time the American submarine force has conducted under-ice operations since a World War II-era boat ...

A U.S. Navy submarine sank an Iranian warship in international waters, Defense Secretary Pete Hegseth said Wednesday, the ...

Video of a US submarine sinking an Iranian warship looked "remarkably similar" to a 1945 US submarine attack, a World War II ...

As naval warfare reemerges as a key strategy in the US war with Iran, World War II museum ships are finding new relevance.

The Los Angeles class has been the backbone of the U.S. attack submarine force for roughly 40 years. That simple fact explains why these boats still matter. Designed in the Cold War and first deployed ...

The US Navy is preparing its future ballistic missile submarine fleet to operate the ...

The sinking of an Iranian warship by a US Navy submarine off the coast of Sri Lanka this week is something a US sub hasn’t done in more than 80 years and is another indication that Washington’s war ...

A group of NATO navies are conducting “Operation Ice Camp Boarfish” in the Arctic Ocean—even as a war rages thousands of miles away in Iran.

What happens when a navy loses its biggest hidden missile magazines before enough replacements are in the water? That ...

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

The Chinese Navy has “dramatically increased” submarine production and could soon deploy a new vessel that’s able to hit ...