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

Key Points - Japan's Taigei-class ("Big Whale") diesel-electric attack submarines, with four completed by 2025 including the recently commissioned JS Raigei, represent a significant leap in ...

Japan has commissioned a new hunter-killer submarine that can operate in shallow seas to protect borders. Called Raigei or Thunder Whale, the diesel-electric submarine is initially planned to operate ...

Japan took the unusual step Monday of announcing that it had carried out the drills, which also involved two destroyers and a helicopter carrier. Japan took the unusual step Monday of announcing that ...

The first female student was admitted to Japan's national naval submarine academy Wednesday after the end of a ban on women on the country's submarines. Saki Takenouchi, 26, entered the academy in a ...

The Japanese Navy included five Type A midget submarines in the Pearl Harbor raid of 7 December 1941. Transported on board large I type submarines, the midgets were launched near the entrance to Pearl ...