Gorbachev's leadership marked a turning point for the Soviet Union. His reforms, Perestroika and Glasnost, aimed to revitalize the stagnant economy and increase political openness. These policies unleashed forces that ultimately led to the end of the Cold War. The fall of the Soviet Union in 1991 reshaped global politics and economics. It ended the era of superpower rivalry, sparked democratic movements worldwide, and led to significant challenges for post-Soviet states transitioning to new systems.