Hitler and the Nazis were responsible for the Holocaust.
Hitler
He didn't do it all by himself, there are many who took part in it and they are all responsible.
Concentration camps were very common during and before the Holocaust.
The people responsible for the Holocaust were either sent to jail for life or got the death penalty. Hitler comitted suicide.
Assuming that the word 'prosections' is supposed to read 'prosecutions': The main figures responsible for the Holocaust were prosecuted at the Nuremberg Trials, a huge series of trials which ran for years after the war.
Germany is the country that made the holocaust
The holocaust was carried out by Germany.
Hitler and the Nazis were responsible for the Holocaust.
The practical side was in the hands of Himmler's deputy, Reinhard Heydrich. Other key figures included Odilo Globocnik and Adolf Eichmann.
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.