The wave of collapse of communism in Eastern Europe and the dissolution of USSR is dubbed "the Soviet East Wave" (which also puns with the alias of Su Shi, a poet and politician in the Sung dynasty).
Examples (Wiktionary)
Mandarin
四年以来俄国策动东欧各国的共党
四年以來俄國策動東歐各國的共黨
sì nián yǐ lái é guó cè dòng Dōngōu gè guó de gòng dǎng
Soviet Union has been instigating communist parties in Eastern Europe for four years