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During the Cold War, the Japan Maritime Self-Defense Force jointly developed a nuclear submarine with the United States Navy.
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Episode 1
Fri, Feb 9, 202456 mins
The MSDF submarine Yamanami collides with a U.S. nuclear submarine, crushing all 76 people on board. Hiroshi Fukamachi, CO of the MSDF submarine Tatsunami, becomes suspicious of the accident and analyzes the recorded data of the collision.





