An Israeli youth wears the national flag near the train track that carried Jews to their death at the Nazi Germany Birkenau Concentration - Extermination Camp in Oswiecim, Poland,Thursday, August 1, 2019. Auschwitz-Birkenau was the largest concentration camp and functioned from june 1940 - January 1945. Historians estimate that 1.1 million people were murdered there. Photo by Debbie Hill/UPI