Final answer:
The Solidarity movement in Poland, starting in 1980, led to significant political and economic reforms, culminating in the election of Lech Wałęsa in 1990 and the collapse of Soviet influence.
Explanation:
The push back against the Soviet Union and communism in Poland began in 1980 with the formation of the Solidarity movement. The Communist Party's dominance was challenged by this independent trade union, leading to political and economic reforms.
Lech Wałęsa's election in 1990 as the Solidarity candidate marked a significant victory, symbolizing the collapse of Soviet power in Eastern Europe. This event ultimately paved the way for a democratic government and thriving capitalist economy in Poland.
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