While it’s been almost a century since the last kill by an American submarine, other navies have done so more recently.

The USS Lionfish was commissioned in 1944 and earned one battle star for service in World War II. It sank a Japanese submarine, rescued the crew of a B-29 bomber, and served as a training submarine.

Seoul, South Korea (CNN) — South Korea wants to join the undersea naval elite – and has received the blessing of US President Donald Trump to do just that. Having Seoul become the seventh country in ...

The introduction of the submarine to naval warfare reshaped planning and doctrine. While typical engagements relied on guns and precision, the submarine didn’t need to concern itself with being as ...

Ukraine's underwater drones have broken through the long-held belief that submarines are unbeatable. On December 15, 2025, they struck a Russian Kilo-class submarine in a well-guarded Black Sea port.

World War II proved that control of the oceans could determine the outcome of a global conflict. While battleships had long ...

The mystique of nuclear-powered submarines has been captured by at least half a dozen popular Hollywood films. Some have centered on the drama of undersea warfare and the risk of global nuclear ...