Final answer:
The Cold War era, led by the United States and the Soviet Union, defined the post-World War II bipolar system through pivotal conferences like Potsdam, Yalta, and Bretton Woods.
Explanation:
The Cold War dominated the world stage after World War II, marked by a bipolar system spearheaded by the United States and the Soviet Union. Key conferences shaping this system include the Potsdam Conference in 1945, the Yalta Conference in 1945, and the Bretton Woods Conference in 1944, setting the stage for economic relations post-WWII.
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