A Russian submarine was deployed alongside a spy ship to map critical undersea infrastructure around Britain, it has emerged. An anti-submarine Merlin Mk2 helicopter could be seen from the photo ...

Summary and Key Points: The Kilo-class submarine is the Soviet Union’s most successful naval export, designed for shallow-water interdiction and "black hole" stealth. -However, naval experts now warn ...

Russia’s newest nuclear submarine, the Khabarovsk, is expected to begin sea trials in 2026 after years of construction delays ...

In 1989, the Soviet nuclear-powered attack submarine Komsomolets sank to the bottom of the Norwegian Sea, along with its nuclear reactor and two nuclear warheads onboard. Komsomolets was constructed ...

Four hundred meters inside a hollowed-out mountain behind a double set of blast doors, operators sit in a darkened room at computer stations facing a bank of floor-to-ceiling screens displaying a map ...

Britain and Norway spent more than a month tracking three Russian submarines in waters north of Europe during an operation to deter the vessels, which ultimately returned to Russia, the U.K. Defense ...

Modern submarines carrying cruise missiles, ballistic missiles, and advanced torpedoes now serve as the primary platforms for nuclear deterrence and long-range strike capability, with the United ...

The Russian submarine shadowed by the Swedish Gripens was transiting the Kattegat, a strategic waterway linking the Baltic approaches with the North Sea system. Although the spotlight is currently on ...

Russia deployed three submarines to spy on the UK’s critical undersea pipelines in the northern Atlantic, British officials revealed on Thursday. UK Defense Secretary John Healey called out Russian ...