Russia’s Improved Kilo II submarine is one of the quietest diesel-electric submarines in the world. Designed for stealth, it ...
The Sierra I submarine was one of the most advanced Soviet attack submarines of the Cold War. Built with a titanium hull, it could dive deeper than most submarines while remaining relatively quiet ...
The March 4 incident in the Indian Ocean marked the first time an American submarine had torpedoed an enemy vessel since the last days of World War II.