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

North Korea denounced an agreement between Seoul and Washington to build nuclear-powered submarines, saying in a state media commentary on Tuesday that the deal would cause a "nuclear domino" effect.

China’s Victory Day parade in September showed off a new, uncrewed submarine the size of a semi-truck — meant to keep tabs on US vessels and seafloor cables — and shined a spotlight on Beijing’s ...

The attack with Ukrainian-made "Sub Sea Baby" drones hit the submarine in the port of Novorossiysk where Russia has rebased ...