The Russian Revolution significantly altered global politics by inspiring socialist movements worldwide. Occurring in 1917, it led to the establishment of the Soviet Union, which propagated communism as a viable ideological alternative to capitalism. The revolution influenced numerous anti-colonial movements, leading to revolutions in countries across Asia, Africa, and Latin America throughout the 20th century. It also instigated tensions during the Cold War, as the U.S. and its allies opposed Soviet expansionism. Overall, the revolution prompted a re-evaluation of political ideologies, sparking debates and conflicts that shaped international relations for decades.