The Holocaust in German-occupied Poland

Map of the Holocaust in occupied Poland during World War II with six extermination camps: Auschwitz-Birkenau, Bełżec, Chełmno, Majdanek, Sobibór and Treblinka; as well as remote mass killing sites at Bronna Góra, Ponary, Połonka and others. Marked with the Star of David are selected large Polish cities with the extermination ghettos. Solid red line denotes the Nazi–Soviet frontier – starting point for Operation Barbarossa of 1941.
Overview
Period	September 1939 – April 1945
Territory	Occupied Poland, also present day western Ukraine and western Belarus among others
Major perpetrators
Units	SS-Totenkopfverbände, Einsatzgruppen, Orpo battalions, Trawnikis, BKA, OUN-UPA, TDA, Ypatingasis būrys
Killed	3,000,000 Polish Jews
Survivors	50,000–120,000
Armed resistance
Jewish uprisings	Będzin, Białystok, Birkenau, , Łachwa, Łuck, Mińsk Mazowiecki, Mizocz, Pińsk, Poniatowa, Sobibór, Sosnowiec, Treblinka, Warsaw, Wilno

The Holocaust in German-occupied Poland was the last and the most lethal phase of the Nazi "Final Solution of the Jewish Question" (Endlösung der Judenfrage) marked by the construction of death camps on Polish soil. The genocide officially sanctioned and executed by the Third Reich during World War II, collectively known as the Holocaust, took the lives of more than three million Polish Jews. The extermination camps played a central role in the implementation of the German policy of systematic and mostly successful destruction of over 90% of the indigenous Polish-Jewish population of the Second Polish Republic.

Every arm of the sophisticated German bureaucracy was involved in the killing process, from the Interior Ministry and the Finance Ministry; to German firms and state-run trains used for deportation of Jews. German companies bid for the contracts to build the crematoria in concentration camps run by Nazi Germany in the General Government as well as in other parts of occupied Poland and beyond.

Throughout the German occupation, at great risk to themselves and their families, many Christian Poles succeeded in rescuing Jews from the Nazis. Grouped by nationality, Polish rescuers represent the biggest number of people who saved Jews during the Holocaust. Already recognized by the State of Israel, the Polish Righteous Among the Nations include 6,620 gentiles, more than any other nation. A very small percentage of Polish Jews managed to survive World War II within the German-occupied Poland or successfully escaped east beyond the reach of the Nazis into the territories of Poland annexed by the Soviet Union, only to be deported to camps in Siberia along with the families of up to 1 million Polish non-Jews.