Answer:
By October 1990, Germany was reunified, triggering the swift collapse of the other East European regimes. People celebrating the fall of the Berlin Wall. Thirteen months later, on December 25, 1991, Gorbachev resigned and the Union of Soviet Socialist Republics dissolved. reunification caused by gorbachev, resulted in the iron curtain countries to gain independence.
Explanation:
The creators of the roman republic work to ensure that no leader became too powerful so that everyone in the empire got to have a say on what they want to happen. For them, a too powerful leader would have all the say and not let anyone else contribute.