Nuclear submarines have quietly reshaped how major powers compete at sea, turning the deep ocean into a domain where a ...

The Baltic Sea, a theater that shaped both world wars, is once again rising to global military significance as NATO’s most advanced submarines deploy to its waters for the first time since World War ...

You know that feeling when you're driving at night and see headlights in your rearview mirror, but you can't quite tell how close they are? Now imagine that, but underwater, with nuclear torpedoes, ...

Add Yahoo as a preferred source to see more of our stories on Google. Commissioned in 1954, the USS Nautilus was the world's first nuclear-powered submarine. It was the first ship to visit the North ...

Attack submarines are one of the major weapons the U.S. relies on to counter China’s military threat in the Pacific.

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 ...

Submarines aren't usually considered luxurious, but South Korea plans to build subs with 'five-star' level accommodations for its allies, including Canada.