Answer:Territories within the Soviet Union were crucial to Nazi plans to acquire Lebensraum, or prime “living space” for “Aryan” Germans. With continental western Europe firmly under German control, Hitler was ready for war with the Soviets in the summer of 1941. For Hitler, according to historian Wendy Lower, “the ultimate aim of this Vernichtungskrieg (war of destruction) against the Soviet Union was to make a ‘Garden of Eden’ out of the newly won territories in the East.” Germany planned to colonize western parts of the Soviet Union, especially the resource-rich lands of the Ukraine, as it had colonized the Warthegau in Poland. This would involve expelling the supposedly inferior “races” of Slavs and Jews who lived there and settling ethnic Germans in their place.
Hitler ordered the invasion of the Soviet Union, which was code-named Operation Barbarossa, on June 22, 1941, deliberately breaking the nonaggression pact that the two countries had signed two years before. The invasion was the largest German military operation of World War II. Battle victories came quickly throughout the rest of 1941, as Germany conquered Soviet-controlled Poland, the Baltic states, and Ukraine. A month after the invasion began, Hitler described his vision for the lands Germany would conquer from the Soviet Union:
The German colonist ought to live on handsome, spacious farms. The German services will be lodged in marvelous buildings, the governors in palaces. . . . What India was for England, the territories of Russia will be for us. If only I could make the German people understand what this space means for our future! Colonies are a precarious possession, but this ground is safely ours. Europe is not a geographic entity, it's a racial entity.
From the Nazis’ point of view, in order to establish Europe as a “racial entity,” Operation Barbarossa would need to be fought as a “racial war” against the Jewish and Slavic “races.” Therefore, according to historian Richard Evans, German military officers believed they “were not just officers but also leaders in a racial struggle against ‘Jewish Bolshevism [Communism].’” In May 1941, German General Erich Hoepner issued the following orders to his soldiers:
The war against Russia is a fundamental part of the German people’s struggle for existence. It is the old struggle of the Germans against the Slavs, the defence of European culture against the Muscovite, Asiatic deluge, the defence against Jewish Bolshevism. This struggle must aim to smash the Russia of today into rubble, and as a consequence it must be carried out with unprecedented harshness.
As a result of those orders and similar ones issued by other German generals, many Soviet prisoners of war (POWs) were shot and killed immediately after being captured, in violation of long-standing international agreements. In July 1941, General Hermann Reinecke, the officer in charge of prisoner affairs in the Armed Forces High Command, allowed security forces to screen Soviet POWs for “politically and racially intolerable elements.” Who were those “elements”? They were “intellectuals,” “fanatic Communists,” and Jews. Their executions did not take place in POW camps. Instead, prisoners were transferred to a remote area and shot.
Not all Soviet POWs were executed. But many others died in POW camps as a result of malnutrition and starvation as well as typhus and other diseases that went untreated. The chart below shows the percentage of deaths in the POW camps of various nations.
Explanation: sorry if its long i love this topic lol