Well, USA saved lots of lives of their soldiers, in cost of lives Japanese non-combatants. Good this is or bad? Anyone decide it for himself...In one hand, life of your soldiers is more expensive for you, then lives of enemies, but in other...killing lots of civilians to scary government of enemy country, make chaos and panic in their army…this is like terrorists do now...
But this is history, anyway. Today USA and Japan are best friends. Now Japanese schoolboys believes, what it was Soviet Union, who drops A-Bomb at Japan (words “Allied Forces” and “Soviet union” have a same signs as I know).