Question

What was domino theory?

Answer 1

The Domino Theory was a Cold War-era belief that if one country in a region fell under the influence of communism, then neighboring countries would also be vulnerable to communist takeover in a domino effect. This theory became prominent during the 1950s and 1960s, particularly in the context of the Vietnam War. The United States, fearing the spread of communism, intervened militarily in Vietnam to prevent the fall of South Vietnam to communist forces, as they believed it would jeopardize other countries in Southeast Asia. The theory ultimately guided U.S. foreign policy in various conflicts during the Cold War.