They got to keep their emperor. For all I know, higher powers in Japan at that time would have preferred that to an alternate universe with no nukes and the em

They got to keep their emperor. For all I know, higher powers in Japan at that time would have preferred that to an alternate universe with no nukes and the emperor getting executed. Of course, those killed in Hiroshima and Nagasaki might feel differently, but when do we ever ask for people's feelings?