why was the United States decision on dropping the Atomiec bomb in 1945 a displomatic measure ?

Question

what evidence is there that proves that US dropped the bomb on hiroshima and nagasaki to intimidate the Soviet Union.

Answer 1

How do you equate diplomacy with dropping a bomb? It was a matter of ending the war early and to save many, many American soldiers lives, that would have ended trying to storm Japan. We did not care about Russia back then. They were nothing. They had not power and their army was what we built for them.

Answer 2

I think it was not so much to intimidate the Soviet Union as to get Japan to surrender before the Soviet Union got too involved in the war. At Yalta, Stalin agreed that the Soviet Union would join the war against Japan 3 months after Germany surrendered (this was before the Bomb was successfully tested.) So knowing that the Soviet Union was going to declare war on Aug 8, we dropped the first one two days earlier.
When Japan didn't surrender, the Soviets launced their invasion of Manchuria as promised, and very quickly overran and area larger than Western Europe, completely destroying the million man Kwantung army. There is considerable debate as to whether it was the Soviet Union entering the war or the Bombs that convinced Japan to surrender, but had Japan not surrendered when they did, the Soviets were set to launch an invasion of Hokkaido in early September, which would have resulted in a postwar division of Japan similar to that of Germany. My own opinion is that, as horrible as the bombs were, they helped Japan in the long run by preventing such a division.

Answer 3

It looked like the Soviet Union was about to formally ally itself with Japan as a way to form a powerful union. It wasn't until after the first bomb was dropped on Hiroshima that it became obvious to the SU that Japan was definitely going to lose the war. At that point, they declared war on Japan. It was an opportunistic move.
But, that was a very minor reason for the decision to use the A-bomb....hundreds of thousands, or even more lives would have been lost, both Japanese and the allies, if a land invasion of Japan had to be undertaken.

Answer 4

On August 6 and 9, 1945, the cities of Hiroshima and Nagasaki were destroyed by the first atomic bombs used in warfare.

Documents on the decision to use the atomic bomb are reproduced here in full-text form. In most cases, the originals are in the U.S. National Archives.

http://www.dannen.com/decision/index.html