The destroyer USS Zumwalt replaced its twin gun systems with new missile tubes for launching hypersonic missiles.

North Korea has detained key officials following a failed launch that damaged a destroyer, state media reported. An investigation into the incident, which occurred on Wednesday during the warship’s ...

The North Korean leader was attending the official launch of a new warship when, in a matter of moments, the ceremony turned into a fiasco. North Korea’s efforts to modernize its navy — and its ...