The dropping of the atomic bombs on Hiroshima and Nagasaki was a controversial decision made by the United States during the war. The decision to drop the bomb was made by President Truman and was a turning point American history. Despite the many disagreeing with the dropping of the atomic bomb it was a military necessity to win the war. The dropping of the bombs was a necessity because of Japan`s terrain, the amount of American lives that would be lost and their refusal to the ultimatum. Japan`s mountainous terrain would be very difficult for the United States to attack. In order for the United States to even come close to winning the war they would need amphibious vehicles to travel land and sea. As well as needing to be able to attack from all sides since Japan is an island. This tactic will put the US army at an offensive disadvantage. Also the Americans lack of knowledge of the terrain would also put them in a dangerous position (Document C). Therefore…show more content… The ultimatum was issued to save the Japanese people from destruction. The Japanese rejecting this then told the US to use any means necessary to win this war. To defend this the United States mentioned how the Japanese attacked Pearl Harbor without warning. Therefore their refusal to surrender after being peacefully warned is another reason for the US to go to the drastic measures of dropping the atomic bomb (Document D). The United States new the increase destruction the bomb would bring to the people of Japan. But due to their refusal of their ultimatum it seems their willingness to surrender is not present. Thus allowing the United States to start considering other ways to win the war. Truman decides in order to save American lives and to avoid a land battle in Japan to drop the atomic bomb. This is why the dropping of he bombs on Hiroshima and Nagasaki were a military