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 ...
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Japan is becoming a submarine powerhouse
Japan now operates five cutting-edge Taigei-class submarines, in addition to its 12 Soryu-class and 6 Oyashio-class vessels.
Japan has commissioned its fifth Taigei-class diesel‑electric attack submarine, JS Chogei. The submarine was formally ...
JS Sogei, the sixth Taigei-class submarine, entered the water in a ceremony held at KHI’s shipyard in Kobe City, Japan, Oct. 14, 2025. Credit: Japan Acquisition, Technology & Logistics Agency Japan’s ...
JS Raigei, the fourth Taigei-class diesel-electric submarine with the Japan Maritime Self-Defense Force. Credit: The Japan Maritime Self-Defense Force (JMSDF) A Japanese Defense Ministry panel called ...
Japan's fourth Taigei-class submarine, JS Raigei , which was commissioned on 6 March 2025. (Japan Maritime Self-Defense Force) Japan has commissioned its fourth Taigei-class diesel-electric submarine ...
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