Although it was mechanically sound, the Turtle, the first military submarine, was employed as a clandestine weapon during the American Revolutionary War. The Hunley, built during the American Civil ...

Building a Virginia-class submarine begins with a detailed design and planning phase, often years before physical work on assembling the submarine begins. Such a program emphasizes integrated product ...

The Cartagena shipyard of state-owned shipbuilding firm Navantia has begun the installation of the first air-independent propulsion (AIP) system on the Spanish Navy’s Cosme Garcia (S-83) ...

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North Korea announced it is building its first nuclear-powered submarine, marking its latest effort to strengthen military leverage over the West after diplomatic relations between Washington D.C. and ...

The race has intensified as the sea ice has been declining. It's one of the harshest environments on Earth. But the Arctic is also of growing strategic importance - where the U.S. is in a race with ...