A landmark event in the late 80's - early 90-ies was the collapse of communism in Eastern Europe. In 1989-1991 the system has fallen so fast and landslide that conclusion suggests one: background the collapse of communism in the countries of CSEC are ripe for a long time and only the fear of Soviet tanks, which in 1956 swept through a popular uprising in Hungary and the "Prague Spring" in 1968, kept people from overthrow planted. It could happen and happen only in conditions of radical changes in the world and full of disappointment in the "bright future".
Not the last role was played by the new political thinking, declared by the new leader of the USSR. Delhi in 1986 and in 1988 the Belgrade Declaration, proclaimed by Gorbachev, recognized the inalienable right of every people to choose their public way. The Soviet Union has pledged not to interfere in the internal affairs of the socialist countries of CSEC, which meant an end to the policy of "Brezhnev doctrine", which implicitly was rejected by the Soviet leader during a visit to Finland in October 1989, Soviet tanks were no longer able to "appear on the streets of the capital of so-called countries of people democracy.
This opportunity was used quickly and effectively by those who lived under totalitarianism forcefully impaled. The collapse of communism in the countries of CSEC has led to the collapse of the Yalta system of dividing the world into spheres of influence of the winners, which immediately after 1945 has become the system of confrontation, to the rapid curtailment of "Cold War". The Soviet Union had nothing else to promote in Europe and the world, it began to get out from under the rubble own communism, and the Americans and their allies had nothing else to restrain. At the same time it broke international organizations of the communist bloc. Attempts to communist forces in August 1991 to stop the objective process of the collapse of totalitarianism in the USSR ended in spontaneous disintegration of the Soviet Union.
With the collapse of communism disappeared bipolar world and confrontation on the line "East - West". At the same time it raised a wave of national-liberation movement, which was particularly strong in the former Soviet Union, Yugoslavia and Czechoslovakia. The West's attitude to the events in the East manifested in cautious steps aimed at easing the impact of the fall of communism. Western countries supported the new post-communist government loans, provide them with humanitarian assistance.
A landmark event in the late 80's - early 90-ies was the collapse of communism in Eastern Europe.