In order to understand the need for the atomic bomb, it is important to note why the U.S. felt the pressure to have such a dangerous weapon. On December 7, 1941 Hitler declares war on the United States, and Japan attacked Pearl Harbor. Creating a war that was now being fought in the Pacific, Atlantic, Europe, Middle East, Africa, and Asia. In an attempt to defend themselves the United States sent a message by sending their first atomic bomb on August 6, 1945 to Hiroshima and three days later in Nagasaki destroying their industrial cities. The devastation created by this bomb was a new threat that no one had seen before. In the Truman Doctrine it notes that the United States had now created a new super powerful image for themselves as well as