The Cold War significantly shaped conflicts in regions like Korea and Vietnam through its division of ideological lines. In Korea, after World War II, the peninsula was split into communist North and capitalist South, leading to the Korean War (1950-1953). Similarly, in Vietnam, U.S. involvement stemmed from the desire to prevent the spread of communism in Southeast Asia, resulting in the prolonged and devastating Vietnam War. These conflicts exemplified global Cold War dynamics, with superpowers supporting opposing sides, ultimately leading to lasting impacts on regional politics, society, and international relations.