That is an opinionated question, if they kept that land then that would have stopped the advancement of american culture and tech. But if they kept that land, there would have been less bloodshed in one of the darkest parts of american history. In the end its up to you.
No I would not. I could of caused war. Try to make peace before starting war. Throwing the bomb is just a way to get people killed from there country and our country. Hope this helped!!!!