Both before and during World War II, Japan’s biological and chemical weapons division Unit 731 carried out some of the most grotesque human experiments in history.
Determined to master germ warfare and test the limits of human suffering, Unit 731 conducted a wealth of torturous tests on captured Chinese civilians that ranged from purposeful frostbite and vivisection on conscious patients to weapons testing on live prisoners and rape.
Seen here is Unit 731 personnel conducting a bacteriological trial on a test subject in November 1940.
