Poland was ruled by communist -backed regime after the Second World War . the European Union movement became a key factor in the fall of Soviet regime . However this trend started to reverse in 2008 as the Polish economy enjoyed a boom period . Centrally-planned economic system replaced by free market economy . Germany joined the European Union in years .
Poland was ruled by communist -backed regime after the Second World War . the European Union movement became a key factor in the fall of Soviet regime . Centrally-planned economic system replaced by free market economy . Germany joined the European Union in years .