This article explores ten submarines that earned reputations as some of the most formidable naval machines ever built. From ...

(CNN) — China’s newest nuclear-powered submarine sank pierside in the spring and the Chinese Navy tried to conceal the loss, according to two US defense officials. The attack submarine was the first ...

SEOUL, South Korea (AP) — North Korea unveiled for the first time a nuclear-powered submarine under construction, a weapons system that can pose a major security threat to South Korea and the US.