For all its ability to switch to stealth mode and remain unseen for months, refuelling a nuclear submarine is quite a ...

South Korea and the US have agreed to pursue a separate agreement to formalize Seoul’s right to build nuclear-powered ...

Werner Hartenstein pulled drowning British troops from the Atlantic Ocean in September 1942. The German U-boat commander was ...

North Korea's state media released photos Thursday of what it said was the hull of a nuclear submarine. Its leader denounced ...

Seoul wants to join the undersea naval elite – and has received the blessing of US President Donald Trump to do just that.

The submarine is the fifth Navy vessel to bear the name Idaho. The first was a wooden-hulled storeship commissioned in 1866.

A US nuclear-powered submarine arrived at a key naval base in South Korea's southeastern Busan city on Tuesday to restock ...

The debut followed the North’s first test of a new surface-to-air missile and the arrival of a U.S. nuclear-powered attack ...

North Korea on Thursday released new images of what it claims is its first nuclear-powered submarine, a massive vessel equal in size to some of the United States Navy’s attack subs.

South Korea may need to pursue a separate bilateral accord with the US to secure the right to build nuclear-powered ...

North Korean leader Kim Jong Un has hit out at a new nuclear submarine deal between the United States and South Korea, ...

The U.S. Navy's nuclear-powered attack submarine USS Greenville docked at the Busan Naval Operations Base on Tuesday, South ...