How did the end of the Soviet Union transform eastern Europe?

In many ways, it sparked revolutions.

Explanation:

Gorbachev's decision to loosen the Soviet yoke on the countries of Eastern Europe created an independent, democratic momentum that led to the collapse of the Berlin Wall in November 1989, and then the overthrow of Communist rule throughout Eastern Europe.

The first revolution of 1989 took place in Poland, where the non-Communist trade unionists in the Solidarity movement bargained with the Communist government for freer elections in which they enjoyed great success. This, in turn, sparked peaceful revolutions across Eastern Europe.

The Soviet Union's collapse not only threw economic systems and trade relations throughout Eastern Europe into a tailspin, it also produced the upheaval in many Eastern European countries and led to increased crime rates and corruption within the Russian government.