The Holocaust took place in Europe during World War II. It occurred in countries and territories that Nazi Germany controlled, had invaded or were allied with. This included all of the following countries listed:
Specifically, Hitler ordered the construction of a vast network of labor camps and death camps to carry out the "Final Solution" to the Jewish question, over 1200 of them in all. 5 camps were specially designed to murder as many people as possible on an industrial scale. These were Auschwitz, Sobibor, Treblinka, Chelmno and Belzec.