How the capital of Germany was divided at the end of world war 2?

At the end of World War II, Berlin, the capital of Germany, was divided into four occupied zones, each controlled by one of the Allied powers: the United States, the Soviet Union, the United Kingdom, and France. This division was established at the Potsdam Conference in 1945, aiming to manage post-war Germany and prevent future conflicts. Eventually, tensions between the Soviet Union and the Western Allies led to the establishment of East Berlin as the capital of East Germany (GDR) and West Berlin as a free city in West Germany (FRG), solidifying the division of the city during the Cold War. The division lasted until the fall of the Berlin Wall in 1989, which paved the way for German reunification.