Discover what tourist submarines are, how they let you explore underwater safely, and just how deep they can take you beneath the surface.

HNoMS Roald Amundsen, a Fridtjof Nansen-class frigate, can house a crew of 120 personnel. Her weapons include the Evolved Sea Sparrow Missile, which has a range of more than 30 miles. She can also ...

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

Sustaining high-tempo US Navy (USN) surface-ship combat operations in the Red Sea depends on proper maintenance of the ...