Armed with liquid metal reactors and titanium hulls, these submarines weren’t just advanced—they were terrifying. Built in secrecy and pushed to extremes, they changed naval warfare forever.

A man cannot one day just decide to build a submarine, much less the first powered submarine, much less if that man is a writer. Yet that is just what Narcis Monturiol did. As a young firebrand of the ...

Modern submarines carrying cruise missiles, ballistic missiles, and advanced torpedoes now serve as the primary platforms for nuclear deterrence and long-range strike capability, with the United ...