Atomic Bomb

            
             Truman assumed the presidency on April 12, 1945 when America was already in war with Japan. United States and Japan were under peaceful negotiations when suddenly on December 7, 1941, a date, (which will live in infany that the United States) of America was suddenly and deliberately attacked by the naval and air forces of the Empire of Japan.
             President Truman's announcement of "Dropping of an Atomic Bomb on Hiroshima" marked an important point in the history of the United States as well as the whole world. The President's address to the nation was given on August 6th, sixteen hours later, when an American plane dropped one bomb on Hiroshima, an important Japanese Army base. The bomb destroyed over four square miles of the city, killing or injuring more than 135,000 people. (Goodman, Philip).
             In the early 1940s, Japan had expansionist aims in Eastern Asia, Indo China and the Western Pacific. In July of 1940, the United States placed an embargo on materials exported to Japan, including oil, in the hope of curbing Japanese expansionism. America's determination to remain isolated from the World War II changed abruptly, following Japan's "surprise attack" on Pearl Harbor on December 7, 1941. Tensions increased between the countries since then as Americans expanded conventional bombing techniques and tightened their increasingly successful naval blockade. The Japanese began the stock piling of aircraft, amassed a giant conscripted military force, and commenced the creation of a civilian army. The leaders of Japan were issued an ultimatum at Postdam for surrender, which is it said that they had ignored it. So on 6th August 1945, the American B 29 bomber named Eulo Gay by the pilot W.Tibbets dropped the "little boy", uranium atomic bomb on city of Hiroshima. (Journal of American History).
             President Truman's speech after that shocking event focused mainly on the scientific and engineering marvel of the atomic bomb.