You can't judge events of the past from todays norms of morale. And if you think you can - give me a name of a leader during first half of last century that was absolutely clean and innocent and whose decisions did not kill anyone.
All political leaders are psychopathic manipulators and sadists. Normal, sane person would strive to avoid ordering one group of people to point guns at another group of people as a part of a Grand Plan. Normal person would use weapons and violence only as a last measure when all else didn't prevent getting him/her in that awful situation.
