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Unit 731 (Japanese: 731部隊, Hepburn: Nana-san-ichi Butai), [note 1] short for Manchu Detachment 731 and also known as the Kamo Detachment [3]: 198 and the Ishii Unit, [5] was a covert biological and chemical warfare research and development unit of the Imperial Japanese Army that engaged in lethal human experimentation and biological weapons manufacturing during the Second Sino-Japanese War ...
In 1935, Ishii was promoted to Senior Army Surgeon, Second Class (surgeon lieutenant-colonel). On August 1, 1936, Ishii would be given formal control over Unit 731 and its research facilities. A former member of Unit 731 recalled in 1998 that when he first met Ishii in Tokyo, he was surprised at his commander's appearance: "Ishii was slovenly ...
Though it is unclear on whether Emperor Hirohito was made aware of the full extent of Unit 731, the emperor's younger brother, Prince Mikasa, had toured the headquarters of Unit 731 and wrote in his memoirs that he watched films of how Chinese prisoners were "made to march on the plains of Manchuria for poison gas experiments on humans." [8]
While Unit 731 is the most infamous facility, scholars have shown that Japanese biological and chemical warfare units stationed in Beijing (Unit 1855), Nanjing (Unit 1644) and Canton (Unit 1688) also experimented on human subjects. [126] Unit 731 members spraying a noxious substance onto a victim as part of their research
[39] [40] The US military paid Japanese members of Unit 731 to conduct experiments on Japanese people in Japan in 1952, with a Japanese girl dying after multiple Japanese babies were deliberately infected with E. coli bacteria at Nagoya City University Hospital by Jiro Ogawa. Japanese patients at a mental hospital were infected with scrub ...
Operation PX (Japanese: PX作戦, romanized: PX Sakusen), also known as Operation Cherry Blossoms at Night (夜桜作戦 Yozakura Sakusen) [1] was a planned Japanese military attack on civilians in the United States using biological weapons, devised during World War II.
Yoshimura Hisato (Japanese: 吉村 寿人; February 9, 1907 – November 29, 1990) was a Japanese war criminal, medical scientist, and physiologist who served as a member of Unit 731, a biological warfare unit of the Imperial Japanese Army, during World War II and conducted experiments on prisoners of war and civilians in Manchukuo, Northeast China.
On September 10, 1940, negotiations were held in Hangzhou between the Central China Expeditionary Army and the Nara Unit, responsible for bacteriological warfare and composed of personnel from Unit 731 and Unit 1644, to select the targets for the attacks: Ningbo and Quzhou, with Jinhua as a backup, to coincide with the blockade of Ningbo Port ...