The Navy is testing fleets of robotic sailboats the size of bicycles to hunt for Russian nuclear submarines. The Oshen C-Star ...

The S-3 Viking left frontline service years ago, but its record stalking Soviet submarines still hangs over today’s naval standoffs in the North Atlantic and Arctic. As Russia leans harder on undersea ...

Russia launched waves of drones to attack port infrastructure and civilian ships in Ukraine's Odesa region on Tuesday, Ukrainian navy and government officials said.