Persecution and murder of approximately six million Jews by the Nazi regime do to the fact that the Germans thought they where a superior race... Adolf Hitler contributed much to the Holocaust being leader of the Third Reich.
The holocaust was carried out by Germany.
Germany is the country that made the holocaust
Hitler and the Nazis were responsible for the Holocaust.
This question doesn't make sense. Do you mean "what was the cause of the Holocaust?" Do you mean "who was responsible for the Holocaust?" Rephrase the question.
Hitler.
Adolph Hitler
Hitler
Hitler. All in all, it was Hitler.
Hitler, Germany.
He didn't do it all by himself, there are many who took part in it and they are all responsible.
Adolf Hitler and Heinrich Himmler.
Primarily the German Nazis.