JAPAN surrendered after two atomic bombs were dropped on it.
The first bomb was detonated by the United States in Hiroshima on August 6, 1945 at 8:15 am. Sixteen hours after the first bomb detonation, President Harry S. Truman called for Japan's surrender and warned them of dire consequences if they refuse to do so.
The second bomb was dropped in Nagasaki on August 9, 1945 before Emperor Hirohito announced the surrender of Japan to the Allies on August 15, 1945 and Japan's surrender was formally signed on September 2, 1945 giving in to the terms stated in the Potsdam Declaration for ending World War II.
