The Holocaust, also referred to as the Shoah, was a genocide during World War II in which Adolf Hitler's Nazi Germany,
aided by its collaborators, systematically murdered some six million European Jews, around two-thirds of the Jewish community in Europe. From 1941 to 1945,
Germany targeted European Jewry for extermination as part of a larger event that included the persecution and murder of other groups. A broader definition
of the Holocaust includes the murder of the Roma and the "incurably sick". A broader definition still includes ethnic Poles, other Slavic groups, Soviet
citizens and prisoners of war, homosexuals, Jehovah's Witnesses, black people, and political opponents.