A. The Brezhnev Doctrine was a Soviet foreign policy made in 1968 and demanded the use of Warsaw Pact forces to interfere in any Eastern Bloc nation which was made to compromise communist rule and Soviet power.
B. The destruction of the Berlin Wall basically signified the official end of the Cold War and destroyed the separation between West and East Germany.
C. When the Soviet Union was collapsing in the late 1980s, Mikhail Gorbachev came into power in 1985 in hopes of reforming the economy and government by focusing on industrial plants, technologies and equal share of the products made in order to benefit the failing economy.
A. Poland's concept of solidarity eventually prevailed when they were able to have free elections. Ending communism and having democratic elections made the country less corrupt and also influenced others like Hungary to follow the same steps.
B. The "Velvet Revolution" swept communist out of office in Czechoslovakia and restored democracy in 1990. Also little violence was involved in this revolution.
C. The Securitate was a brutal secret police force who savagely repressed demonstrations, setting off a national uprising that ended within four days and left Ceausescu and his with dead.
B.Since accomplishing "perestroika" was a hard task, he began pushing economic decentralization, the profit motive and the cost-accounting methods he instituded engendered the hostility of those whose priviliged positions depended on the old system.
C.The Estonians, Latvians, and Lithuanians were the first to declare their independence in August 1991.