Answer:
as stated in the screenshot below, the poland government was forced into a anti-communist trade industry.
also the revolutions started in poland, according to wikipedia.
source(s)
https://www.bbc.co.uk/bitesize/guides/zq63b9q/revision/3
https://en.wikipedia.org/wiki/Revolutions_of_1989
(wouldnt advise you to use wikipedia, but only if the information on the page is true.)