השואה, HaShoah, "the catastrophe"), was a genocide in which
Adolf Hitler's Nazi Germany and its collaborators killed about six million Jews.The victims included 1.5 million children and represented about two-thirds of the nine million Jews who had resided in Europe. Some definitions of the Holocaust include the additional five million non-Jewish victims of Nazi mass murders, bringing the total to about 11 million. Killings took place throughout Nazi Germany, German-occupied territories and territories held by allies of Nazi Germany.