when did germany attack the soviet union despite the non aggression pact between the two countries
Molotov–Ribbentrop Pact The pact delineated the spheres of interest between the two powers, confirmed by the supplementary protocol of the German–Soviet Frontier Treaty amended after the joint invasion of Poland. It remained in force for nearly two years, until the German government of Adolf Hitler ended the pact by launching an attack on the Soviet positions in Eastern Poland during Operation Barbarossa on 22 June 1941.[2]
End of World War II in Europe The final battles of the European Theatre of World War II as well as the German surrender to the Soviet Union and the Western Allies took place in late April and early May 1945.
Germany–Soviet Union relations before 1941 Cooperation ended in 1933, as Adolf Hitler came to power and created Nazi Germany. The countries' economic relationship dwindled at the beginning of the Nazi era, but some diplomatic initiatives continued through the 1930s, culminating with the Molotov–Ribbentrop Pact of 1939 and various trade agreements. Few questions concerning the origins of the Second World War are more controversial and ideologically loaded than the issue of the policies of the Soviet Union under Joseph Stalin towards Nazi Germany between the Nazi seizure of power and the German invasion of the USSR on June 22, 1941.[4]
Warsaw Pact On 14 May 1955, the USSR and other seven European countries "reaffirming their desire for the establishment of a system of European collective security based on the participation of all European states irrespective of their social and political systems"[48] established the Warsaw Pact in response to the integration of the Federal Republic of Germany into NATO,[3][5] declaring that: "a remilitarized Western Germany and the integration of the latter in the North-Atlantic bloc [...] increase the danger of another war and constitutes a threat to the national security of the peaceable states; [...] in these circumstances the peaceable European states must take the necessary measures to safeguard their security".[48]