*!SIGH!*
This felgercarb .... again.
And what about Truman's military advisors?
While in hindsight some of their predictions seem farfetched today, there were those who honestly believed they'd be fighting the Japanese for the duration of the twentieth century if they didn't force the issue.
The Navy was was the only force that believed in a blockade of Japan to end the war .... perhaps to echo one meme in this story, because it would be "their toys" used to enact the blockade.
But the other forces, many of which had borne the brunt of the physical fighting against the Japanese, considered them ruthless and determined and that they would never surrender without either using the BOMB or a massive invasion.
OPERATION DOWNFALL, consisting of two basic maneuvers, was planned to bring Japan down to its knees. We were expecting enormous losses, and the Japanese were also expecting an invasion, and were training citizens to resist using any weapons at hand even down to broomsticks if need be.
Preparations for this had already started and troops from the european theter were being transfered to the Pacific Coast to position them as the Enola Gay was revving up.
There were factions in Japan against the government -- indeed, even an attempted coupe d'etat -- and some Japanese did know it was over, but the hardcases in the military would never have capitulated so easily.
Plus, this knowledge wasn't available to Truman and his advisors at the time. Truman saw the decision as one using the one type of massive attack they had that would simultaneously save as many American lives as possible .... and THAT wasn't the invasion, it was the use of nukes.
As horrible as it was....and I've read books about the results of Hiroshima and Nagasaki that give me the heebeejeeebes just READING about the horror the survivors of the atomic attacks faced.......I have often thought that another serendipitous response to the bombings was it taught the world powers very well what nuclear weapons would do. The Nazis had a nuke program that
lacked a fuse, the Japs had a nuke program that
HAD a fuse and lacked fissile material (they were being shipped some by German U-Boat which we intercepted [thank God]) and the Russians had spies in our nuclear program that allowed them to produce a nuiclear bomb only a few years after WW2 ended.
Many thousands of Japanese survivors had to deal with radiation poisoning and a slow horrible death. Others survived longer only to deal with cancers and other tumors later in life.
But I still believe that those peoples' suffereings would be as nothing compared to what would have happened should any superpower have decided it was possible to engage in a nuclear war and win.