into the War by declaring war on Japan. A few day later Germany and Italy declared war on the U.S. Then U.S. President Franklin D. Roosevelt had a decision to make whether to fight against Japan first or to fight against Germany or even both. Surprisingly the U.S. did not fight against Japan first as most would have thought. President Roosevelt consider Germany a direct threat because they had scientist and engineers that were deemed capable of developing deadly weapons of mass destruction such as the Atomic Bomb, therefore they need to be stopped quickly. Once Germany was defeated the U.S. went to fight against Japan with new U.S President Harry S. Truman as Commander and Chief. President Truman had learned of the Atomic bombs been tested by the Manhattan Project, he warned japan to surrender by what was called the Potsdam Declaration advising Japan that if they did not surrender they would face and inevitable destruction. At this time President Truman also meet with Stalin, the Soviet Union leader who advised that they planned to invade Japan on August 8 th , 1945. President Truman decided to end the war early by forcing Japans surrender and stopping the Soviet Invasion of Japan. August 6,1945 the first atomic bomb was dropped during World War II over Japanese city Hiroshima. This first explosion cleared out 90% of Hiroshima and killed tens of thousands of people. A few days later a second atomic bomb was dropped over another Japanese city,

Project 2 6 Nagasaki, killing another 40,000 people. The dropping of the atomic bombs authorized by United States President Harry S. Truman aided in Japans surrender in World War II. Japans’ Emperor Hirohito announced his countries surrender in a radio address on August 15,1945 calling the atomic bomb “a new and most cruel bomb.” The dropping of the atomic bomb in Japan over Hiroshima and Nagasaki aided in the ending of World War II, not only affecting the outcome of the war, but also affecting the way international relations were conducted.