"The armed forces' jet fighters and warships met up with the submarine .... and are now following it," Sweden's armed forces ...

Nuclear-powered submarines use some of the most advanced military technology in the world. These are the ones that are a cut ...

For years, stories have circulated about a massive great white shark known only as Submarine — a predator said to stalk the waters off South Africa. This video dives deep into the myth, the sightings, ...

Inside the effort to deliver a ‘transformational improvement’ in how the US builds submarines, vital to preserving its undersea advantage.

Kawasaki Heavy Industries has launched Sougei, the sixth Taigei-class submarine at its No.1 Building Berth in Kobe Shipyard ...

Russia has maintained—and increased—its submarine operations across the world's oceans, including the northern Atlantic and the Arctic, which have raised concerns for the U.S. and its NATO allies, as ...