Submarine forces of the U.S. and South Korean navies discussed ways to improve combined operational capabilities.

On Sept. 30, 1954, the USS Nautilus, the world's first nuclear submarine, was commissioned by the U.S. Navy, under the ...

Pacific’s complex undersea terrain presents unique navigational challenges for U.S. Navy submarines, as demonstrated by the ...

China’s newest nuclear-powered submarine sank pierside in the spring and the Chinese Navy tried to conceal the loss, ...

The USS San Francisco, a Los Angeles-class nuclear submarine, survived a catastrophic collision with an uncharted seamount in ...

The sinking of China's first Zhou-class submarine represents a setback for Beijing as it continues to build out the world's ...

The U.S. official said it was "not surprising" that China's navy would conceal it. The submarine's current status is unknown.

A senior U.S. Defense official said it was no surprise China covered up that its first nuclear-powered Zhou-class submarine ...

Beijing has not acknowledged the sinking and a US defence official said it was "not surprising" that China's navy would ...

Naval experts and US officials say vessel appears to have sunk in port, and may have been carrying nuclear fuel at the time ...

Satellite imagery showed that China’s newest nuclear-powered attack submarine sank alongside a pier while under construction, ...