Knowing the necessity for the defeat of the Imperial Japanese government, the burgeoning country-wide famine, combined with the inevitable bloodbath of a mainland invasion, the Allies justified the use of nuclear weapons, the details of which you can read about in the articles I posted above. Nazi Germany and the USSR were also developing their own nuclear weapon systems. A demonstration was deemed necessary.

I personally would not have authorized dropping the bombs on cities. Easy for me to say. But I certainly would have been living the rest of my days in despair at the mindless slaughter and ritual mass-suicide that would've ensued during the invasion of mainland Japan.

I don't envy the choices the Allies had to make while combatting Nazi Germany, Fascist Italy, and Imperial Japan.