No but stopping the war has to be agreed upon by both parties and while the majority of the civilians of japan no longer supported the war effort their government would not sign any form of treaty to end this. Nuking them was a gross extension of power not just once but twice. The proper answer would have been to sanction the fuck out of a island that had burned most bridges to its surrounding neighbors but our answer to the problem was unfortunately to try to cause the most death we could to a bunch of people not involved in a way shape or form because we wanted to see a big boom. So the idea that oh well they deserved it because they killed people too is a very harmful thought process in general.