How did the Soviet Union come to dominate Eastern Europe after World War II?

A.
by supporting communist parties in democratic elections

B.
by keeping troops in the region and setting up communist governments **

C.
by agreeing with the United States to divide Europe in half

D.
by making a separate peace agreement with Germany

Yes, B.

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The Soviet Union came to dominate Eastern Europe after World War II by keeping troops in the region and setting up communist governments. To understand why this happened, we need some historical context.

During World War II, the Soviet Union fought against Nazi Germany and suffered significant casualties. As the Soviet Red Army pushed back the German forces, they advanced into Eastern Europe, including countries such as Poland, Czechoslovakia, Hungary, and Romania. By the end of the war, the Soviets had gained control over these territories.

At the Yalta Conference in 1945, the leaders of the Allied powers, including Soviet Premier Joseph Stalin, met to discuss the post-war world and the division of Europe. They agreed that the Soviet Union would have "spheres of influence" and would exercise control over Eastern Europe, while the Western Allies would have influence over Western Europe.

After the war, the Soviet Union proceeded to establish pro-Soviet governments in the Eastern European countries they occupied. They supported the local communist parties in these countries and installed regimes that were loyal to Moscow. The Soviet Red Army stationed troops in Eastern Europe to maintain control and suppress any opposition.

This intervention by the Soviet Union was facilitated by the fact that Eastern Europe was ravaged by war and in need of reconstruction. The communist parties, often seen as liberators from the Nazis, gained popularity among the population, which helped the Soviets secure their control.

So, the answer is B. The Soviet Union came to dominate Eastern Europe after World War II by keeping troops in the region and setting up communist governments.