Bipolarity refers to a state in which two dominant powers or ideologies exist in a global system, often influencing international relations and politics. This concept is commonly associated with the Cold War, when the world was primarily divided between the United States and the Soviet Union. Each superpower had its own allies and sought to expand its influence, leading to a competitive and often tense global environment. In a bipolar world, the actions of one power can significantly impact the other, creating a balance of power that can deter conflict. This structure contrasts with a unipolar system, where one dominant power exists, or a multipolar system, where multiple powers share influence. Understanding bipolarity helps explain historical and contemporary geopolitical dynamics.