On Killing by LtCol Dave Grossman, 2009, Excerpts
The guilt and trauma of an average human being who is forced to murder innocent civilians don’t necessarily have to wait years before they swell up into revulsion and rebellion. Sometimes the executioner cannot resist the forces that cause him to kill, but the still, small voice of humanity and guilt wins out shortly thereafter. This guilt becomes virtually unavoidable when the killer’s side has lost and must answer for its actions. And if the soldier truly acknowledges the magnitude of his crime, he must rebel violently.