Sweden's submarines are small and quiet, perfect for the Baltic Sea that many NATO allies share with Russia.

The Russian submarine shadowed by the Swedish Gripens was transiting the Kattegat, a strategic waterway linking the Baltic ...

Some of the most powerful weapons in history never had to be used. Submarines have quietly reshaped warfare by doing ...

A Massachusetts-based company is set to start production of devices that are used to ...

Australia has paid for the first British-built parts of nuclear reactors to power a future SSN-AUKUS stealth submarine, the government said Tuesday. Australia plans to acquire a fleet of cutting-edge, ...

Submarine propeller designs are highly classified due to their critical role in acoustic stealth and survivability.

The USS New Jersey submarine has reentered service following a round of post-delivery upgrades and system adjustments.