The drastic changes in Eastern Europe, also known as the drastic changes in the Soviet Union and Eastern Europe, are called the Eastern Europe 1989 series revolutions in western society, which refers to the events in which some socialist countries and workers' parties in Eastern Europe lost their political power in a short time around 1989 and their social systems changed fundamentally.

Main reasons:

First, the Stalin model has not been modified for a long time, and the original economic system has been used, which has led to the technological backwardness of the Soviet Union in some aspects (Stalin model attaches importance to heavy industry, leading to the backwardness of other industries and agriculture).

Second, relax the self-construction of the ruling party for a long time. In the process of ruling, the countries of the Soviet Union and Eastern Europe neglected their own construction for a long time, and some political parties degenerated ideologically and politically, losing their communist ideals and beliefs, making the party lose its spiritual pillar and ideological cohesion; Democratic centralism has been seriously damaged, democratic supervision within the party has been lacking for a long time, and grass-roots organizations are lax and weak.

Third, treat socialism rigidly for a long time. The Soviet Union and Eastern European countries have a highly centralized economic and political system and operational mechanism, that is, the Soviet model. The Soviet Union and eastern European countries did not adjust and reform in time with the changes of time and conditions, and stuck to the Soviet model for a long time, regarding it as the only correct model of socialism.

Extended data:

The drastic change in Eastern Europe is a fundamental change in the political and economic systems of socialist countries in Eastern Europe, and it is also a violent turmoil in which the socialist system eventually evolved into the capitalist system.

Drastic changes began after 1989. It first appeared in the Polish People's Republic, and later extended to Warsaw Pact countries such as the German Democratic Republic, Czechoslovakia, the Hungarian People's Republic, the Bulgarian People's Republic and the Romanian Socialist Republic. This event ended with the disintegration of the Soviet Union, which is generally considered to mark the end of the Cold War.

After the drastic changes in eastern Europe. The influence of socialism has obviously weakened, and the western countries have suffered a great impact. A few small parties dissolved automatically, and some political parties democratized society, changed their party names and applied to join the Socialist International. The number of * * * in the world has decreased from more than 270 in the heyday of the 1980s to 147.

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