Unit 731 controversies
Controversies tied to this brand in public sources. A listing is not a finding of fault.
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1949
Postwar prosecution and immunity controversy
The Soviet Union prosecuted twelve personnel, while the United States granted immunity to several prominent figures in exchange for research information. The disparity became a lasting controversy.
1945
Destruction of evidence and killing of prisoners
As the war ended, personnel destroyed facilities and records and killed remaining detainees to conceal the organization's activities.
Lethal human experimentation
Prisoners were intentionally infected, vivisected, subjected to extreme conditions and exposed to weapons-related experiments. The program included civilians, prisoners of war, children and pregnant women.