In brief, the Soviets backed communist parties in the countries of Eastern Europe that they had occupied during World War Two, namely Poland, Czechoslovakia, Hungary, Romania, Bulgaria and East Germany. According to the various treaties agreed between the 'Grand Alliance' (the USA, the Soviet Union and Britain) these countries would have free and fair elections after the Soviet withdrawal.
However, the Eastern European communist parties first joined 'national unity' coalitions pre-elections, and the Soviets used their military occupation of the countries to drive out the other parties after political blunders by their opponents (for example in Poland) or rig elections so the communist parties won.
This was slightly different in the case of East Germany, where the German Democratic Republic was founded to begin with as a communist Dictatorship under virtual Soviet control. Germany had been divided up between the victorious powers after the war, but the goal of reunification was unrealistic so the two sides ended up founding two different states in their areas (The French, British and American zones became the Federal Republic of Germany).
This created an 'iron curtain', less dramatically a clear political division, between the closed communist states of Eastern Europe and the capitalist states of Western Europe (with the exception of communist Yugoslavia, which wasn't under as much soviet influence).
to rein in the soviets and to unite western europe
The soviets had expected to win a quick victory
The western allies on the western front, and the Soviets on the Russian Front.
The Soviets believed that it belonged to them, so they would do what they wanted.
At the conclusion of WW 2, the Western allies sought democratic governments for Eastern Europe and basically for all of Europe. The Soviets under Joseph Stalin had other ideas. Their armies essentially occupied the Eastern nations where they had driven out the Nazi armies. The Soviets had an expansionist ideology and installed communist governments in the nations of Eastern Europe. This included East Germany.
Divide it in four parts, to be governed by Britain, the United States, the Soviets, and France
The soviets goal was to spread communism in all of Europe so the soviets needed to get rid of non-communist powers to make this happen.
All of Eastern Europe.
to rein in the soviets and to unite western europe
Ural Mountains divide Asia from Europe.
The key to winning the war in Europe was the "Russians" (Soviets). The war between the Soviets (Russian Front) and Germany was the primary war in Europe commencing in 1941. In Europe...anything but the Russian Front was a side-show.
At the end of WW2.
The soviets had expected to win a quick victory
The Ural Mountains separate Europe and Asia, serving as a natural border between the two continents.
World War caused Europe to divide. By Omar Adam
Berlin.
The Ural and the Caucasus Mountain ranges divide Europe from Asia.