Vladimir Putin has unveiled a hulking new nuclear submarine capable of launching torpedoes said to be able to create ...

Royal Navy tests “Rattler” uncrewed vessels in a milestone sea trial, escorting warships from 500 miles away in a step toward a Hybrid Navy.

The SR-72 “Darkstar” is envisioned as a Mach-6, air-breathing ISR platform—but could it strike? -Hypersonic speed complicates ...