In a very small way, reason and emotion do have a play in justifying moral decisions. But the main factor is our conditioning from our society, religion, ethnicity, regionalism, politics, etc A Buddhist will act based on Buddhist's morality, a Christian, Muslim Jewish, etc. , based on their own morality However, what happens if our conditioning is in conflict with our reasons. Which would we follow in making a moral decision?
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.