Who was the Soviet leader when Eastern Europe was freed from Soviet control?

The Soviet leader when Eastern Europe was freed from Soviet control was Mikhail Gorbachev. His policies of Glasnost (openness) and Perestroika (restructuring) in the late 1980s contributed to the decline of Soviet influence in the region. The fall of the Berlin Wall in 1989 and the subsequent collapse of communist regimes across Eastern Europe occurred during his tenure, leading to significant political changes and the eventual dissolution of the Soviet Union in 1991.