The Cairo Declaration was the outcome of the Cairo Conference in Cairo, Egypt, on 27 November 1943. President Franklin Roosevelt of the United States, Prime Minister Winston Churchill of the United Kingdom, and Generalissimo Chiang Kai-shek of the Republic of China were present. The declaration developed ideas from the 1941 Atlantic Charter, which was issued by the Allies of World War II to set goals for the post-war order. The Cairo Communiqué was broadcast through radio on 1 December 1943.

The Potsdam Declaration, or the Proclamation Defining Terms for Japanese Surrender, was a statement that called for the surrender of all Japanese armed forces during World War II. On July 26, 1945, United States President Harry S. Truman, United Kingdom Prime Minister Winston Churchill, and Chairman of China Chiang Kai-shek issued the document, which outlined the terms of surrender for the Empire of Japan, as agreed upon at the Potsdam Conference. The ultimatum stated that, if Japan did not surrender, it would face "prompt and utter destruction."