Discuss the progression of the final solution, from the invasion of the soviet union through the wannsee conference and harvest festival.

On January, 20, 1942, Reinhard Heydrich, Himmler's second in command of the SS, convened the Wannsee Conference in Berlin with 15 top Nazi bureaucrats to coordinate the Final Solution (Endlösung) in which the Nazis would attempt to exterminate the entire Jewish population of Europe, an estimated 11 million persons.