North Dakota has undergone repairs, structural inspections, and replacements of mechanical and electrical systems, according ...

In one of naval warfare’s strangest encounters, a Soviet submarine and a NATO warship clashed—not with torpedoes or missiles, but in a tense, high-stakes collision just beneath the waves. This wasn’t ...

To this day, there has only been one recorded instance of submarine-on-submarine warfare during WWII. The German Navy's destroyed U-864 is toxic to this day.