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OSWIECIM, POLAND - FEBRUARY 15: An original guard tower stands at the Auschwitz II-Birkenau memorial concentration camp site on February 15, 2019 in Oswiecim, Poland. Next year, 2020, will mark the 75th anniversary of the liberation of Auschwitz. The Nazis used the Auschwitz camp and its satellite camps for slave labor and large-scale extermination of arriving inmates. In all 1.1 million Jews and others died at Auschwitz between 1940 and 1945. (Photo by Sean Gallup/Getty Images)