What did Unit 731 do and why?

unit 731 Unit 731 was a top-secret biological and chemical warfare research base established in Harbin as the nerve center for Japanese biological

731 and its affiliated units conducted human experiments, including vivisection, on Chinese and other victims in Manchukuo and throughout China between 1933 unit 731 World War II may be in order first A Brief History of Unit 731 and Japan's Biological Warfare Research The driving force behind Japan's wartime biological