In the territories occupied by Germany in Russia during World War II, almost as many have been killed. In France, Italy, a fifth to a quarter of the population was killed. To put things more in human terms, this is a picture of children who were in Auschwitz, one of the most infamous concentration camps. And you can see their names, their ages, and then when they were killed. Historians believe five to six million Jews were killed during the Holocaust, including a million and a half children. This was two thirds of the Jewish population of Europe. But the Holocaust went further.