WORLD HISTORY

Detailed explanation-1: -In the night of 23-24 August 1939, Germany and the Soviet Union signed a non-aggression pact., known as the Molotov-Ribbentrop Pact. The countries agreed that they would not attack each other and secretly divided the countries that lay between them. Germany claimed Western Poland and part of Lithuania.

Detailed explanation-2: -Nazi Germany had a distinct anti-Bolshevik, antisemitic policy, was very much directed against the Soviet Union. They were fighting each other through a proxy war during the Spanish Civil War in the 1930s. And the Soviet Union was famous for being anti-fascist, anti-Nazi.

Detailed explanation-3: -West Germany was allied with the U.S., the U.K. and France and became a western capitalist country with a market economy. In contrast, East Germany was allied by the Soviet Union and fell under highly centralized communist rule.

Detailed explanation-4: -The German–Soviet Boundary and Friendship Treaty was a second supplementary protocol of the Molotov–Ribbentrop Pact of 23 August 1939. It was a secret clause as amended on 28 September 1939 by Nazi Germany and the Soviet Union after their joint invasion and occupation of sovereign Poland.

Detailed explanation-5: -When World War II started, the Soviet Union was effectively an ally of Nazi Germany in a relatively conventional European interstate war. Although the Germans did most of the fighting in Poland, the Soviet Union occupied the eastern part.