And yet there were those in Japan who still didn’t want to give up.
Yeah, I have some acquaitenances in Georgia who are still ready to continue where their great great grandfathers left off.
The US stance of "unconditional surrender" and what its "varying" - they changed - parameters meant to the status of the Emperor were in question.
So, the Japanese continued to fight on; it was only when the Emperor ordered an end of the fighting that the killing stopped.
There was just one more atomic bomb (in transient to Tinian) available ... they were "hand made" at the time. Had the Emperor not ordered the end ... unconditional surrender was not an option in the Japanese mind-set ... no matter how many atomic bombs were dropped.