Who told japan to surrender?

Japan was urged to surrender primarily by the Allied Powers during World War II, particularly after the dropping of atomic bombs on Hiroshima and Nagasaki in August 1945. The Potsdam Declaration, issued by the United States, the United Kingdom, and China in July 1945, called for Japan's unconditional surrender. Following the bombings and facing the threat of further destruction, Emperor Hirohito announced Japan's surrender on August 15, 1945.