The U.S. Navy has some of the most advanced nuclear submarines in the world. Its newest addition is named after an important ...

The Dreadnought-class submarines are central to the United Kingdom’s nuclear deterrent, replacing the Vanguard class that has ...

The S5 submarine is a critical step towards India’s future “blue-water” navy—allowing it to go head-to-head with the People’s Liberation Army Navy far from India’s shores.

North Korea's state media released photos Thursday of what it said was the hull of a nuclear submarine. Its leader denounced ...

The Navy is racing to field a new generation of ballistic missile submarines that will eventually rank as the 12 largest ...

National-security officials say Chinese submarines and icebreakers pose a new military threat from the High North.

Japan Considers Nuclear-Powered Submarines Amid Regional Tensions As South Korea and U.S. advance discussions, Japans review ...

A federal submarine buildout could bring new manufacturing work and jobs to the Capital Region, CEG says, citing West ...

Autonomous submarines that Australia has launched into production are likely to relieve operational pressure on the country’s ...

After trading barbs online with former Russian leader Dmitri A. Medvedev, President Donald Trump has ordered nuclear submarines to be positioned in “the appropriate regions” near Russia “just in case.

Spotter planes can no longer directly see enemy submarines. Today, their mission is overwhelmingly acoustic—listening to ...