Live Science
By Ben Turner
May 30, 2023
Archaeologists in China have uncovered a secret underground bunker used by Japanese scientists to conduct horrific experiments on human subjects during World War II.
The “horror bunker,” discovered near the city of Anda in Heilongjiang province, northeast China, was used by the Japanese army’s infamous Unit 731 during Japan’s occupation of China from 1931 to 1945.
Built by the Japanese in 1941 and running until Japan’s surrender at the end of World War II, the lab was Unit 731’s largest research site, but its exact location was lost until now. Unit 731 began in 1931 as a Japanese-run public health unit, but it quickly expanded its research to include grotesque biological and chemical warfare experiments using Chinese, Korean, Russian and American captives as test subjects.