Answer: rejected communism in a short time.
Step-by-step explanation:
There is no timeline attached but this should be the correct answer. After the fall of the Soviet Union, there was no backing for the communist governments of eastern European countries as the Soviets would regularly intervene in their affairs to keep the Communist party in power.
With the Soviets gone, the Communists were forced from office in most Eastern European countries and this paved the way for multi-party elections and a more democratic eastern Europe.