If you want to get a fairly clear picture of what kind of people we were up against when we went to war with Japan read:
The Rape of Nanking.
It will leave you numb.
The Rape of Nanking.
It will leave you numb."
It left me numb. I have read two books, Killer Angels and The Rape of Nanking that I had to put down while reading because I was overcome. The Japanese of the time made nazis look like the Salvation Army by comparison. In fact, the hero of The Rape of Nanking is in fact a nazi. Read it and then try to find a way to question Trumans wisdom.