Which event prompted US intervention in Latin America during the Cold War era?

The U.S. intervention in Latin America during the Cold War era was significantly prompted by the Cuban Revolution in 1959, which led to Fidel Castro's communist government. The U.S. feared the spread of communism in the region and sought to contain it through various interventions, including the Bay of Pigs invasion in 1961 and support for military coups, such as the overthrow of Chilean President Salvador Allende in 1973. These actions were part of a broader strategy to prevent Soviet influence and maintain U.S. dominance in the Western Hemisphere.