Solidarity (Polish: Solidarność, pronounced [sɔlʲiˈdarnɔɕtɕ] ; full name: Independent Self-Governing Trade Union “Solidarity”—Niezależny Samorządny Związek Zawodowy "Solidarność" [ɲɛzaˈlɛʐnɨ samɔˈʐɔndnɨ ˈzvjɔ̃zɛk zavɔˈdɔvɨ sɔlʲiˈdarnɔɕtɕ]) is a trade union founded in August 1980 at the Lenin Shipyard in Gdańsk, Poland. Subsequently, it was the first independent free trade union in a Warsaw Pact country to be recognised by the state. The union's membership peaked at 10 million in September 1981, representing one-third of the country's working-age population. Solidarity's leader Lech Wałęsa was awarded the Nobel Peace Prize in 1983 and the union is widely recognised as having played a central role in the end of communist rule in Poland.