As I posted earlier on the this thread that the atom bombs and Soviet's breaking out in northeast China finally convinced Japan to take an unconditional surrender in August 1945.
This political decision making was led by the cabinet members who, though very secretly, believed in to bring the fighting to end. If the cabinet or the government was not so, which was still quite possible to happen, and still insisted on fighting, there could be a doubt whether the atom bombs alone would really made Japan to on her knees.
Then what would happen thereafter?. That is what I am scared to think of.
Following is an information only.
The ground combat took place in Okinawa in early 1945 stoods out in our war history. Not only the sacrifices were made, but also many people there killed themselves not to surrender to the Americans. It has been commonly recognized in Japan that to do so was ordered by Japanese military there. But recently a doubt on this reasoning caused a political devate which developed into a critical one (there are a pile of other political issues of course).