"Soldiers Without Rights": The Imperial Japanese Army's Dark Experimentation Past The revelation that the Imperial Japanese Army conducted experiments on its own soldiers in 1940 is a stark reminder of the callous disregard for human rights that has long been a stain on Japan's military history.
Historian and researcher Seiya Matsuno points out that this experiment reveals a disturbing attitude towards those deemed unfit for combat, viewing them as mere research material rather than fellow human beings.
The experiments were conducted at an army hospital in Chiba Prefecture, where soldiers with mental illnesses were subjected to the malaria parasite without their full understanding or consent.