Kruska, Read Richard Frank's "Downfall". It was quite evident that the A-Bombs were what caused Japan to surrender or rather Hirohito ordering the military to do so. Furthermore it's quite clear Hirohito had already made up his mind to surrender even before hearing the full details of August Storm. If I'm not wrong some of the military leaders were still wanting to fight on even after Hiroshima,Nagasaki and August Storm. So in the end game it was the bombs influence on Hirohito that really mattered.