How did political boundaries change throughout world war 2?

During World War II, political boundaries changed significantly as a result of territorial conquests and post-war agreements. Countries like Germany, Italy, and Japan expanded their territories through military aggression, while others, such as the Soviet Union, annexed parts of Eastern Europe. After the war, the establishment of new borders was influenced by the Potsdam Conference and the emergence of the United Nations, leading to the division of Germany and the creation of new states in Europe and Asia. This reconfiguration laid the groundwork for the geopolitical landscape of the Cold War era.