Answer:
Operation Reinhard involved the creation of three extermination camps at Belzec, Sobibor, and Treblinka.
Step-by-step explanation:
Operation was named after general Reinhard Heydrich. Main goal was to kill around two million Jews that were living in Poland. Besides them a lot of Gypsies, Roma, Poles and others went through the camps. According to the data that we have around 1.7 million people died in these camps.