Mass grave uncovered that remained Nazi secret We use your sign-up to provide content in ways you’ve consented to and to improve our understanding of you. This may include adverts from us and 3rd parties based on our understanding. You can unsubscribe at any time. More info Between 1941 and 1945, the Nazis and their collaborators murdered some six million Jews across Europe. They killed roughly two-thirds of Europe’s Jewish population as the Nazis operated more than a thousand concentration camps in German-occupied Europe. The murders were carried out in a number of different ways, including extermination through labour in...