Answer :
Final answer:
The Cold War was a period of geopolitical tension between the US and the Soviet Union, ending in 1991 with the collapse of the USSR, leading to global changes and new challenges.
Explanation:
The Cold War was a period of geopolitical tension between the United States and the Soviet Union from 1945 to 1991. It was characterized by competition for global influence, alliances, and the arms race, including the development of nuclear weapons.
The end of the Cold War in 1991 was marked by the collapse of the Soviet Union, leading to geopolitical shifts, the spread of democracy, and the emergence of new challenges like international terrorism.
American hegemony rose after the Cold War, but the era left a lasting impact on global politics, strategic alliances, and conflicts that continue to influence international relations today.
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