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

In a 2005 naval exercise, the Swedish submarine HSMS Gotland stunned the U.S. Navy by "sinking" the aircraft carrier USS ...

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, ...

A U.S. officials says China's newest nuclear-powered submarine in its fleet sank in spring while docked at a pier but Chinese ...

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 ...

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

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

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