Re: Section 31 is a positive for the Federation (spoilers from TV & bo this is historical myth. Japan was already on the verge of conditional surrender by the bombing of Hiroshima, they were using the USSR as a go-between. What they were concerned with was the preservation of the emperor. Dropping the a-bomb was about making sure that it was an unconditional surrender and it was about intimidating the USSR with what America could do. Either way, an invasion of the homeland would not have been necessary. And if they had needed to use the atom bomb, a demonstration in an uninhabited area could have been made.