The surrender of Japan was announced by Imperial Japan on August 15 and formally signed on September 2, 1945, bringing the hostilities of World War II to a close.
By the end of July 1945, the Imperial Japanese Navy Naval ensign of the Empire of Japan.svg was incapable of conducting major operations and an Allied invasion of Japan was imminent. Together with the United Kingdom and China, the United States called for the unconditional surrender of the Japanese armed forces in the Potsdam.
Declaration on July 26, 1945—the alternative being “prompt and utter destruction”. While publicly stating their intent to fight on to the bitter end, Japan’s leaders (the Supreme Council for the Direction of the War, also known as the “Big Six”) were privately making entreaties to the still-neutral Soviet Union to mediate peace on terms more favorable to the Japanese. Meanwhile, the Soviets were preparing to attack Japanese forces in Manchuria and Korea (in addition to southern Sakhalin and the Kuril Islands) in fulfilment of promises they had secretly made to the United States and the United Kingdom at the Tehran and Yalta Conference.
On August 6, 1945, at 8:15 AM local time, the United States detonated an atomic bombReplica of the “Fat Man” nuclear bomb dropped on Nagasaki, Japan, on August 9, 1945 Afbeeldingsresultaat voor hiroshima over the Japanese city of Hiroshima. Sixteen hours later, American President Harry Shipp Trumann called again for Japan’s surrender, warning them to “expect a rain of ruin from the air, the like of which has never been seen on this earth.” Late in the evening of August 8, 1945, in accordance with the Yalta agreements, but in violation of the Sovet-Japanese Neutrality Pact, the Soviet Union declared war on Japan, and soon after midnight on August 9, 1945, the Soviet Union invaded the Imperial Japanese puppet state of Manchukuo. Later in the day, the United States dropped a second atomic bomb, this time on the Japanese city of Nagasaki. Following these events, Emperor Hirohito intervened and ordered the Supreme Council for the Direction of the War to accept the terms the Allies had set down in the Potsdam Declaration for ending the war. After several more days of behind-the-scenes negotiations and a failed coup d’état, by a group under officer Kenji Hatanaka major_kenji_hatanaka, He shot himself on 15-08-1945 age 33, In Hatanaka’s pocket was found his death poem: “I have nothing to regret now that the dark clouds have disappeared from the reign of the Emperor.”
Emperor Hirohito gave a recorded radio address across the Empire on August 15. In the radio address, called the Jewel Voice Broadcast, he announced the surrender of Japan to the Allies.