Allied war crimes during World War II

Allied war crimes include both alleged and legally proven violations of the laws of war by the Allies of World War II against either civilians or military personnel of the Axis powers.

At the end of World War II, many trials of Axis war criminals took place, most famously the Nuremberg Trials and Tokyo Trials. However, in Europe, these tribunals were set up under the authority of the London Charter, which only considered allegations of war crimes committed by people who acted in the interests of the Axis powers.

Some war crimes involving Allied personnel were investigated by the Allied powers and led in some instances to courts-martial. Some incidents alleged by historians to have been crimes under the law of war in operation at the time were, for a variety of reasons, not investigated by the Allied powers during the war, or were investigated and a decision was taken not to prosecute.

The Western Allies claim that their militaries were directed to observe the Hague Conventions and Geneva Conventions and believed to be conducting a just war fought for defensive reasons. Violations of the conventions did occur, however, including the forcible return of Soviet citizens who had been collaborating with Axis forces to the USSR at the end of the war. The military of the Soviet Union also frequently committed war crimes, which are today known to have been at the direction of its government. These crimes included waging wars of aggression, mass murder and genocide of prisoners of war, and repressing the population of conquered countries.

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