North Korea’s state-run media lashed out at the United States on Tuesday over the arrival of a fast-attack submarine in South Korea’s largest port, calling it an “undeniable threat” and an effort to ...

The nuclear-powered USS Alexandria is a 360-foot fast-attack submarine equipped with Tomahawk missiles and MK48 torpedoes.

The next-generation SSN(X) submarine is expected to deliver greater transit speed under increased stealth conditions in every ocean environment. Budgetary constraints and labor shortages have hindered ...