Einsatzgruppen in the context of "Jewish question"

Operation Barbarossa was the invasion of the Soviet Union by Nazi Germany and several of its European Axis allies starting on Sunday, 22 June 1941, during World War II. More than 3.8 million Axis troops invaded the western Soviet Union along a 2,900-kilometer (1,800 mi) front, with the main goal of capturing territory up to a line between Arkhangelsk and Astrakhan, known as the A–A line. The attack became the largest and costliest military offensive in human history, with around 10 million combatants taking part in the opening phase and over 8 million casualties by the end of the operation on 5 December 1941. It marked a major escalation of World War II, opened the Eastern Front—the largest and deadliest land war in history—and brought the Soviet Union into the Allied powers.

The operation, code-named after the Holy Roman Emperor Frederick Barbarossa ("red beard"), put into action Nazi Germany's ideological goals of eradicating communism and conquering the western Soviet Union to repopulate it with Germans under Generalplan Ost, which planned for the removal of the native Slavic peoples by mass deportation to Siberia, Germanisation, enslavement, and genocide. The material targets of the invasion were the agricultural and mineral resources of territories such as Ukraine and Byelorussia and oil fields in the Caucasus. The Axis eventually captured five million Soviet Red Army troops on the Eastern Front and deliberately starved to death or otherwise killed 3.3 million prisoners of war, as well as millions of civilians. Mass shootings and gassing operations, carried out by German paramilitary death squads and collaborators, murdered over a million Soviet Jews as part of the Holocaust.

The Final Solution or the Final Solution to the Jewish Question was a plan orchestrated by Nazi Germany during World War II for the genocide of individuals they defined as Jews. The "Final Solution to the Jewish question" was the official code name for the murder of all Jews within reach, which was not restricted to the European continent. This policy of deliberate and systematic genocide starting across German-occupied Europe was formulated in procedural and geopolitical terms by Nazi leadership in January 1942 at the Wannsee Conference held near Berlin, and culminated in the Holocaust, which saw the murder of 90% of Polish Jews, and two-thirds of the Jewish population of Europe.

The nature and timing of the decisions that led to the Final Solution is an intensely researched and debated aspect of the Holocaust. The program evolved during the first 25 months of war leading to the attempt at "murdering every last Jew in the German grasp". Christopher Browning, a historian specializing in the Holocaust, wrote that most historians agree that the Final Solution cannot be attributed to a single decision made at one particular point in time. "It is generally accepted the decision-making process was prolonged and incremental." In 1940, following the Fall of France, Adolf Eichmann devised the Madagascar Plan to move Europe's Jewish population to the French colony, but the plan was abandoned for logistical reasons, mainly the Allied naval blockade. There were also preliminary plans to deport Jews to Palestine and Siberia. Raul Hilberg wrote that, in 1941, in the first phase of the mass-murder of Jews, the mobile killing units began to pursue their victims across occupied eastern territories; in the second phase, stretching across all of German-occupied Europe, the Jewish victims were sent on death trains to centralized extermination camps built for the purpose of systematic murder of Jews.

The history of the Jews during World War II is almost synonymous with the persecution and murder of Jews which was committed on an unprecedented scale in Europe and European North Africa (pro-Nazi Vichy-North Africa and Italian Libya). The massive scale of the Holocaust which happened during World War II greatly affected the Jewish people and world public opinion, which only understood the dimensions of the Final Solution after the war. The genocide, known as HaShoah in Hebrew, aimed at the elimination of the Jewish people on the European continent. It was a broadly organized operation led by Nazi Germany, in which approximately six million Jews were murdered methodically and with horrifying cruelty. Although the Holocaust was organized by the highest levels of the Nazi German government, the vast majority of Jews murdered were not German, but were instead residents of countries invaded by the Nazis after 1938. Of the approximately 6 million Jews murdered by the Nazis, approximately 160,000 to 180,000 were German Jews. During the Holocaust in occupied Poland, more than one million Jews were murdered in gas chambers of the Auschwitz concentration camp alone. The murder of the Jews of Europe affected Jewish communities in Albania, Austria, Belarus, Belgium, Bosnia & Herzegovina, Channel Islands, Croatia, Czech Republic, Estonia, France, Germany, Greece, Hungary, Italy, Latvia, Libya, Lithuania, Luxembourg, Moldova, the Netherlands, North Macedonia, Norway, Poland, Romania, Russia, Serbia, Slovakia, and Ukraine.

Leading to World War II, nearly all Jewish businesses in Nazi Germany had either collapsed under financial pressure and declining profits, or had been forced to sell out to the Nazi German government as part of the "Aryanization" policy inaugurated in 1937. As the war started, massacres of Jews took place originally as part of Operation Tannenberg against the Polish nation. The much larger and methodical mass killings of Jews began with the onset of Operation Barbarossa in 1941. Led by Einsatzgruppen and the Order Police battalions, the destruction of European Jews took place with the active participation of local Auxiliary Police including Belarusian, Estonian, Latvian, Lithuanian, and Ukrainian units.

The Wannsee Conference (German: Wannseekonferenz, German pronunciation: [ˈvanzeːkɔnfeˌʁɛnt͡s] ) was a meeting of senior government officials of Nazi Germany and Schutzstaffel (SS) leaders, held in the Berlin suburb of Wannsee on 20 January 1942. The purpose of the conference, called by the director of the Reich Security Main Office SS-Obergruppenführer Reinhard Heydrich, was to ensure the co-operation of administrative leaders of various government departments in the implementation of the Final Solution to the Jewish Question, whereby most of the Jews of German-occupied Europe would be deported to occupied Poland and murdered. Conference participants included representatives from several government ministries, including state secretaries from the Foreign Office, the justice, interior, and state ministries, and representatives from the SS. In the course of the meeting, Heydrich outlined how European Jews would be rounded up and sent to extermination camps in the General Government (the occupied part of Poland), where they would be murdered.

Discrimination against Jews began immediately after the Nazi seizure of power on 30 January 1933. Violence and economic pressure were used by the Nazi regime to encourage Jews to voluntarily leave the country. After the invasion of Poland in September 1939, the extermination of European Jews began, first through mobile death squads like the Einsatzgruppen, and the murders continued and accelerated after the invasion of the Soviet Union in June 1941. On 31 July 1941, Hermann Göring gave written authorization to Heydrich to prepare and submit a plan for a "total solution of the Jewish question" in territories under German control and to coordinate the participation of all involved government organisations. At the Wannsee Conference, Heydrich emphasised that once the deportation process was complete, the fate of the deportees would become an internal matter under the purview of the SS. A secondary goal was to arrive at a definition of who was Jewish.

The Ordnungspolizei (Orpo, German: [ˈɔʁdnʊŋspoliˌtsaɪ], meaning 'Order Police') were the uniformed police force in Nazi Germany from 1936 to 1945. The Orpo was absorbed into the Nazi monopoly of power after regional police jurisdiction was removed in favour of the central Nazi government ("Reich-ification", Verreichlichung, of the police). In 1936, Heinrich Himmler, the commander (Reichsführer-SS) of the Schutzstaffel (SS), was appointed Chief of the German Police in the Interior Ministry. The top and upper leadership positions of the Orpo were filled by police officers who belonged to or had joined the SS. Owing to their green uniforms, Orpo members were also referred to as Grüne Polizei (Green Police). The force was established as a centralised organisation based in Berlin uniting the municipal, city, and rural uniformed police that had been previously organised on a state-by-state basis.

The Ordnungspolizei encompassed virtually all of Nazi Germany's law-enforcement and emergency response organisations, including fire brigades, coast guard, and civil defence. Himmler and Kurt Daluege, chief of the Orpo, worked to transform the police force into militarised formations ready to serve the regime's aims of conquest and racial annihilation. Police troops were first formed into battalion-sized formations for the invasion of Poland, where they were deployed for security and policing purposes, also taking part in executions and mass deportations. During World War II, the force was tasked with policing the civilian population of the occupied and colonised countries. In 1941, the Orpo's activities escalated to genocide after the Order Police battalions formed into independent regiments or were attached to Wehrmacht security divisions and Einsatzgruppen. Independently and in collaboration with those units, members of the Orpo perpetrated crimes against humanity and mass-murder during the Holocaust.

Order Police battalions were battalion-sized militarised units of Nazi Germany's Ordnungspolizei which existed during World War II from 1939 to 1945. They were subordinated to the Schutzstaffel and deployed in areas of German-occupied Europe, specifically the Army Group Rear Area Commands and territories under civilian administration. Alongside the Einsatzgruppen, Waffen-SS and Wehrmacht, these units were involved in perpetrating the Holocaust and were responsible for large-scale crimes against humanity against civilian populations under German occupation.