A Vanguard-class submarine used for Britain’s nuclear deterrent has resurfaced after a record-breaking 204 days at sea.

A submarine returned home to the Clyde today following the longest ever patrol by a British nuclear deterrent-carrying b ...

Submariners have returned from what is believed to be the longest deployment of a nuclear-armed submarine in Royal Navy ...

The USS Nautilus was the world's first nuclear-powered submarine. It participated in scientific and military operations ...

North Korea unveiled for the first time a nuclear-powered submarine under construction, a weapons system that can pose a ...

A rare point of agreement between the Biden and Trump administrations could have a big business impact in New Hampshire, ...

PARIS — French defense-electronics maker Thales won a contract to supply the entire sonar and acoustics suite for the Royal ...

A Chinese navy task group that circumnavigated Australia in February and March highlighted China's ambition to operate more frequently in the same neighborhood, Australian officials said.

The multibillion-dollar AUKUS deal, through which the US promised to deliver a batch of nuclear submarines to Australia, is ...

North Korea's Foreign Ministry said that its "nuclear armed forces will exist forever as a powerful means of justice," ...

Firings and buyouts hit the top-secret National Nuclear Security Administration amid a major effort to upgrade America’s ...

Talk of replacing the American nuclear umbrella over Europe with the small British and French nuclear armories is in the air, ...