German Invasion A few days after the outbreak of the uprising Hans Frank wrote in his diary: "Almost all Warsaw is a sea of flames. To set houses afire is the surest way to deprive the insurgents of their hiding places. When we crush the uprising, Warsaw will get what it deserves – complete annihilation." Hans Michael Frank (23 May 1900 – 16 October 1946) was a German war criminal and lawyer who worked for the Nazi Party during the 1920s and 1930s, and later became Adolf Hitler's personal lawyer. After the invasion of Poland, Frank became Nazi Germany's chief jurist in the occupied Poland "General Government" territory. During his tenure throughout World War II (1939–45), he instituted a reign of terror against the civilian population[1] and became directly involved in the mass murder of Jews. At the Nuremberg trials, he was found guilty of war crimes and crimes against humanity and was executed.