Surcouf was a French cruiser submarine armed with heavy guns, aircraft, and torpedoes, designed to hunt enemy fleets across ...

The Soviet Union's Typhoon-class was the largest submarine ever built, a 48,000-ton nuclear-powered behemoth made famous by "The Hunt for Red October." Designed to operate under Arctic ice, it carried ...

Germany and India are hammering out the details of a submarine manufacturing deal worth at least $8 billion — the largest-ever defense agreement for New Delhi, according to officials with direct ...