What was the cause of the fall of the iron curtain?

The fall of the Iron Curtain was primarily caused by a combination of political, economic, and social factors, including the decline of Soviet influence under Mikhail Gorbachev's policies of glasnost (openness) and perestroika (restructuring). Additionally, widespread public discontent in Eastern European countries, exemplified by peaceful protests and demands for democratic reforms, weakened authoritarian regimes. The collapse of the Berlin Wall in 1989 symbolized the end of the division between East and West, leading to the eventual dissolution of the Soviet Union in 1991.