The impact of World War II on the global balance of power was transformative, leading to the decline of European colonial empires and the emergence of two superpowers: the United States and the Soviet Union. The war necessitated global cooperation, resulting in the establishment of the United Nations to promote peace and prevent future conflicts. Additionally, the war's aftermath saw the division of Europe into Eastern and Western blocs, setting the stage for the Cold War. This new power dynamic influenced international relations and geopolitical strategies for decades.