Japan had actually repeatedly offered conditional surrenders. Specifically, surrenders on the condition that it keep some of its colonies (Korea and Taiwan), th

Japan had actually repeatedly offered conditional surrenders. Specifically, surrenders on the condition that it keep some of its colonies (Korea and Taiwan), that the Japanese military government remain intact, and that nobody be charged for war crimes. This is as if Germany offered a surrender on the condition that it keep western Poland and Czechoslovakia, that the Nazi party remain in power, and that nobody be tried for war crimes. This is not remotely close to an acceptable surrender. And the US ultimately did accept a surrender on the condition that the imperial family not be tried for war crimes (a particularly contentious point for China, since a royal family member was the commanding officer in charge of the forces that perpetrated the crimes at Nanking).