Operation Reinhard in Kraków

Operation Reinhard in Kraków, often referred to by its original codename in German as Aktion Krakau, was a major 1942 German Nazi operation against the Jews of Kraków, Poland. It was headed by SS and Police Leader Julian Scherner from the Waffen-SS. The roundup was part of the countrywide Aktion Reinhard (Operation Reinhard), the mass murder of Polish Jews in the so-called General Government under the command of SS und Polizeiführer Odilo Globočnik.

Source: Wikipedia — Operation Reinhard in Kraków (CC BY-SA 4.0)