Unit 731
During World War II, the Imperial Japanese Army conducted extensive and brutal chemical and biological warfare research on human test subjects, leading to the deaths of an estimated 200,000 people. This horrific chapter in history, known as Unit 731, saw victims intentionally exposed to deadly pathogens such as anthrax, bubonic plague, cholera, syphilis, typhus, and more. The experiments conducted by Unit 731 were some of the most inhumane and barbaric acts ever perpetrated in the name of science and warfare.