Final answer:
In 1980, shipyard workers in Poland formed a trade union called Solidarity and went on strike to protest government policies. The movement gained significant support, with one-third of Poland's population joining the union within a year. Despite the government's attempts to suppress it, Solidarity could not be silenced, thanks in part to the support of Pope John Paul II and the Polish church.
Step-by-step explanation:
In 1980, shipyard workers in Poland formed a trade union called Solidarity and went on strike to protest government policies. The movement gained significant support, with one-third of Poland's population joining the union within a year. Despite the government's attempts to suppress it, Solidarity could not be silenced, thanks in part to the support of Pope John Paul II and the Polish church.