Events that took place in Czechoslovakia and known under the name of "Prague Spring" were the first try to humanize the socialism in this country. The democratic changes executed local reforms under the leadersip of Alexander Dubcheck were referred as a threat to the whole socialist team. Fearing that overthrowing of the regime and its separation from the Warsaw Treaty would push other countries to make a similar step, the Soviet Union Communist Politic Bureau made a decision to intrude into Czechoslovakia on August 21, 1968 under the name of international help. After 1956 famous events in Hungary this was the first try of the Soviet Union to suppress democratic moves within the socialist team. These moves made their traces in the Soviet Union political development and finally found its realization in the derision of the Soviet Empire. The event of the "Prague Spring" is still the object of interest for the countries included in these occasions.