What happen to eastern european nations occupied by the soviet union after world war ii?

After the World War II, the Soviet Union occupied multiple countries in Eastern Europe. The Soviets implemented an ''iron fist'' rule over this countries, and were undertaking extreme measures when necessary in order to keep everything under control, and in the way they liked it. All of this countries became republics in the Soviet Union, and all of then got governments installed by the Soviet Union, governments that were communist and shared the ideology of Stalin.

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the first historical instance of china engaging in internationalism was during the han dynasty.[1] at the start of the han dynasty, the huns in the north were attacking the frontiers of han and trying to obtain riches. emperor wu of han wanted to gain an alliance with a country called dayuezhi so the two countries could join together and fight against the huns.[2] to obtain this alliance, emperor wu sent zhang qian to the west to establish economic and cultural connections.[2] history records that during the han dynasty there were four primary avenues of contact between china and europe. they included the northern land route, the central land route, the southern sea route, and the far southern sea route.[1] the most famous of these routes is the central land route, or the classical silk road, comprising a network of roads stretching from northwest china to the ports of syria and the black sea, which passed through the oasis of the turkestans and northern persia.[1] the silk road was significant for chinese emperors because it provided dominance over central asia by developing resources and provided new markets for the export of china's most valuable resources.[1]