Poland, Romania, Bulgaria, Czechoslovakia, and Hungary, as well as the Eastern portion of Germany are known as what types of states?

An invisible line that divided Eastern and Western Europe

This type of music became popular in the post-WW2 era

This was the name of the Soviet Union military treaty

Did the Soviets control Eastern or Western Europe?

What is the primary reason that the Soviet’s space advances scared the United States

How did the economy perform after WW2?

Keeping communism within its existing borders is known as…

This country fought back against Soviet Rule and fought the "blood in the water" water polo match

What types of weapons were being tested?

What was the name of the satellite the Soviet sent into Space?