Hai Kun (SS-711), also known as Narwhal, successfully completed its first submerged sea trials on January 29, 2026.

Russia has likely provided technical assistance to North Korea in the development of submarines, South Korean Defense Minister Ahn Gyu-back told the country's parliament on Oct. 13, Reuters reported.

South Korean President Lee Jae Myung and Defense minister Ahn Gyu-back in Gyeryong, South Korea, October 1, 2025. REUTERS/Kim Hong-Ji/Pool SEOUL (Reuters) -North Korea has likely received technical ...

The debate over nuclear-powered submarines is likely to serve as a critical indicator of Japan’s strategic trajectory.

At its current production rates, China is likely to have a far more menacing submarine force than Russia in short order—though its quality is still uncertain.

The Brazilian Navy's Submarine Development Program PROSUB (Programa de Desenvolvimento de Submarinos) reached milestones on 26 November with the commissioning of the third Riachuelo-class ...

SEOUL (Reuters) -North Korea has likely received technical help from Russia for its submarine development, South Korean Defense Minister Ahn Gyu-back told parliament on Monday. North Korea has vowed ...