Answer :

After World War II, the United States' new enemy became the Soviet Union. This shift in enemy alignment marked the beginning of the Cold War period between the United States and the Soviet Union. The Cold War was a period of political tension and military rivalry without direct armed conflict between the two superpowers. During this time, the United States and the Soviet Union engaged in a series of proxy wars, espionage, and propaganda battles. The Cold War lasted for several decades and had a significant impact on global politics, economics, and society. The United States viewed the Soviet Union as a threat due to ideological differences, military buildup, and expansionist policies. The competition between the two superpowers for influence and control over various regions led to a constant state of tension and rivalry. In conclusion, after World War II, the United States identified the Soviet Union as its new enemy, leading to the start of the Cold War era characterized by geopolitical competition and ideological differences.