Nazi German troops end the week-long Wola massacre, during which time at least 40,000 people are killed indiscriminately or in mass executions.

Nazi Germany, officially the German Reich and later the Greater German Reich, was the German state between 1933 and 1945, when Adolf Hitler and the Nazi Party controlled the country, transforming it into a totalitarian dictatorship. The Third Reich, meaning "Third Realm" or "Third Empire", referred to the Nazi claim that Nazi Germany was the successor to the earlier Holy Roman Empire (800–1806) and German Empire (1871–1918). The Third Reich, which the Nazis referred to as the Thousand-Year Reich, ended in May 1945, after 12 years, when the Allies defeated Germany and entered the capital, Berlin, ending World War II in Europe.

The Wola massacre was the systematic killing of between 40,000 and 50,000 Poles in the Wola neighbourhood of the Polish capital city, Warsaw, by the German Waffen-SS, Ordnungpolizei, Sicherheitdienst and the SS-Sonderregiment Dirlewanger, which took place from 5 to 12 August 1944. The massacre was ordered by Heinrich Himmler, who directed to kill "anything that moves" to stop the Warsaw Uprising soon after it began.