Japan’s Sōryū-class submarines are the backbone of the JMSDF’s undersea force and some of the most capable non-nuclear subs ...

Built by BAE Systems, the Astute is slated to become the Brit’s default SSN, replacing the Trafalgar class. In total, seven Astute submarines are expected to be built, culminating a project that began ...

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.

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

The British Royal Navy was once the greatest maritime force in history. Its reach was global and its competence on the High Seas was legendary. Since the Second World War, however, the Royal Navy has ...

In "Spies Like Us," General Sline comments on America's nuclear arsenal, saying, "A weapon unused is a useless weapon." This can be true, but seeing as the U.S. and the Soviet Union followed the ...

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