Submarines

China is considering transitioning to an all-nuclear submarine fleet, prompting discussions on whether Japan will follow suit. Tokyo faces numerous hurdles, including personnel issues and potential redundancies.

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Japan's Defense Ministry has suspended Kawasaki Heavy Industries from bidding on its projects for 2.5 months due to falsified fuel efficiency data on submarine engines built for the Maritime Self-Defense Force from 1988 to 2021. The issue affects engines in 23 of the MSDF's 24 submarines, though officials state it poses no risk to safety or performance.