Unit 731 (731部隊), based at the Pingfang district of Harbin and led by the infamous Japanese microbiologist Shiro Ishii, was a covert biological warfare research and development unit of the Imperial Japanese Army that undertook human experimentation during the Second Sino-Japanese War (1937–1945) and World War II.
What was the Unit 731
At least 12,000 men, women, and children were killed during the experimentation conducted by Unit 731 at the camp based in Pingfang alone.
Related articles: Names of members of infamous Unit 731 released by the National Archives of Japan, Rare images of the infamous Japanese experiment unit 731 in China – Second Part – Graphic content – Men Behind the Sun by Mou Tun-Fei (The film is a graphic depiction of the war atrocities committed by the Japanese at Unit 731)
Prisoners of war were subjected to vivisection without anesthesia.
Vivisections were conducted on detainees after infecting them with various diseases.
Scientists performed invasive surgery on prisoners, removing organs to study the effects of disease on the human body.
The experiments were conducted while the patients were alive because it was feared that the decomposition process would affect the results.
Human targets were used to test grenades positioned at various distances and in different positions.
Flame throwers were tested on humans.
Humans were tied to sticks and rods and used as targets to test germ-releasing bombs, chemical weapons, and explosive bombs.
Prisoners were injected with inoculations of disease, disguised as vaccinations, to study their effects.
To study the effects of untreated venereal diseases, male and female prisoners were deliberately infected with syphilis and gonorrhea, then studied.
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Prisoners were infested with fleas to acquire large quantities of disease-carrying fleas to study the viability of germ warfare.
Plague fleas, infected clothing, and infected supplies encased in bombs were dropped on various targets.
Resulting cholera, anthrax, and plague were estimated to have killed around 400,000 Chinese civilians.
Tularemia was tested on Chinese civilians. (Source: Wikipedia)
Unit 731 images
Related article: Japanese officer performing seppuku during World War II
Topic: causes of unit 731, what did they do at Unit 731
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