The Potsdam Agreement, or the Potsdam Proclamation, was an agreement on policy for the occupation and reconstruction of Germany and other nations after fighting in the European Theatre of World War II had ended with the German surrender of May 8, 1945. It was drafted and adopted by the major victorious powers, the USSR, USA, France and UK, at the Potsdam Conference between July 17 and August 2, 1945.
The participants were the top leaders of those three states, Josef Stalin, Harry Truman, Winston Churchill, and the ministers of foreign affairs of those states. After Churchill lost the general election and resigned, the prime minister of the United Kingdom, Clement Attlee, joined.
In a second document adopted at the conference, the Potsdam Declaration, the United States and its allies also warned Japan to surrender or face complete destruction.