Naito Ryoichi

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Naito Ryoichi was a key figure in the Japanese Army's biological warfare unit, specifically the 9420 Unit, involved in the logistical organization and execution of biological experiments during World War II.

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Naito Ryoichi was the general affairs officer of the 9420 unit who submitted an organizational chart of the biological warfare units.

“可怕、肮脏、有毒”——追查二战日军东南亚细菌战 _光明网

Guangming Daily·

China· 2025-08-24

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