What was one consequence of Germany's invasion of the Soviet Union?

Under the code name Operation "Barbarossa," Nazi Germany invaded the Soviet Union on June 22, 1941, in the largest German military operation of World War II. The German-Soviet Pact of August 1939, which stated that Poland was to be partitioned between the two powers, enabled Germany to attack Poland without the fear of Soviet intervention. On September 1, 1939, Germany invaded Poland. The Polish army was defeated within weeks of the invasion.