Anti-Communism refers to a political and social movement that opposes the ideology and practices of Communism. It emerged prominently in the 20th century, particularly during the Cold War, when countries like the United States sought to contain the spread of communist influence, especially from the Soviet Union. Anti-Communist sentiments often emphasized the perceived threats to democracy, individual freedoms, and capitalism posed by communist regimes. The movement has manifested in various forms, including political campaigns, propaganda, and military interventions. Notable events, such as the McCarthy era in the U.S., highlighted fears of communist infiltration in government and society. Anti-Communism has shaped international relations and domestic policies in numerous countries throughout history.