Introduction The central precept behind propagation optimisms is that, the main impact of the use of atomic bombs by the U.S. was to dissuade war between their possessors. Atomic bombs are assumed to have a stabilizing effect because even a small atomic arsenal can deter potential enemies from attacking the proliferators. Deterrence is essential because the risk of vengeance by even a small number of atomic weapons overshadows any probable gain of a military attack. Optimists also argue that new proliferators were least expected to suffer the same domination and to have power over problems as the powers used during the cold war. Atomic bombs have at all times been seen as an immense equalizer in intercontinental relations. One may dispute that Japan would not be dissuaded from using unadventurous weapons to meet a predictable American assault. This paper gives the reasons that forced President Trauma to order the use of atomic bombs on Japan during the Second World War. Desire to Put an End to the War The U.S. dropped atomic bombs on Japan in order to end the war that had become aggressive. It invaded Japan because of the desire to subdue it and put an end to the war. Japan was determined to turn its island into a fortress and it was not even concerned that its own citizen’s lives were at risk. The U.S. had to put to an end what Japan was planning because if it went ahead with its plans, more than one million American and British would have lost their lives. It is believed that the bomb saved the lives of allies and some Japanese. Much discussion has taken place over the American decision to drop the atomic bomb on Japanese cities. For Harry Truman, this was not a hard decision. Losses in an attack of Japan would have been great. Following the dropping of the atomic bombs, American public opinion was extremely supportive of Truman’s decision. The Japanese were referred to as “japs”, and were depicted with unsophisticated racial stereotypes, and were seen as devious and definitely not to be trusted. Force Japan to Surrender Another reason why the U.S. used the atomic bombs was to force Japan to surrender the war. Japan responded to this as it surrendered immediately thereby saving the lives of over one million Japanese and more than one hundred American soldiers who would have lost their lives if America invaded Japan. Earlier attempts to put to an end the war by use of nuclear weapons had failed to bear fruits as Japanese military were not willing to back off the fight. This forced the U.S. to use atomic bombs since it perceived that many lives would be lost if Japan if the war continued. It is believed that, President Harry Truman used atomic bombs on Japan as a way of intimidating Stalin, and to keep him out of the war. However, the general officers did not approve this move and they denounced their commander-in-chief. Takaki, Ronald, in his book “Hurishima: Why American Dropped the Atomic Bomb” noted that by 1944, the war had noticeably turned against the Japanese. In late October, General MacArthur went back to the Philippine island of Layette. The Japanese started to use kamikaze pilots in an anxious attempt to obliterate Allied ships. Quite a few more bloody battles waited ahead for American forces. America suffered twenty five thousand casualties at the battle of Iwo Jima and another fifty thousand at the battle of Okinawa. After these battles, though, nothing was left to stop an Allied invasion of Japan [1] . These extr