Polish labor leader Lech Walesa walks through a crowd.

The video discusses the impact of bilingualism on Poland and the challenges to communist foundations. It highlights the revolutionary demands of followers in a Marxist state, leading to the government's acceptance of workers' rights to organize independent unions. The video concludes with a reflection on the strong control over Polish life.

What does the term 'independent unions' refer to in the context of the text?

Describe the nature of the 'iron grip' mentioned in the text regarding Polish life.