Allied war crimes during World War II

There are many reported war crimes involving Allied military forces in World War II. The armed forces of the Soviet Union, in particular, engaged in the mass killing, deportation, forced labour and mistreatment of prisoners of war and civilians, as well as mass rapes and widespread looting in occupied territories. War crimes were also committed by British, American and other Allied forces, but not on the same scale as those of the Axis powers and the Soviet Union. There has been continued debate over whether the British and American strategic bombing campaigns, in which an estimated 800,000 civilians were killed, were war crimes.

After the war, many trials of Axis war criminals took place, most famously, the Nuremberg trials and Tokyo Trials. The Western Allies prosecuted a number of war crimes committed by their own forces, but Allied war crimes were not prosecuted by the post-war international military tribunals.

In the 21st century, historians and other commentators have paid more attention to Allied war crimes, while warning against arguments suggesting a "moral equivalence" between the actions of the Allies and the crimes of the Axis powers.