The Real War 1939-1945 (1989)
The willingness of societies to sanitize the realities of war is easily understood in evolutionary terms: genes that build brains that are willing to suspend disbelief and engage in violence reproduce better than genes that build brains that are not willing to do so because the former can use a credible threat of violence to exploit the latter as resources.  The sad fact of the matter is that the answer to Rodney King&#x27;s famous rhetorical question is that no, we can&#x27;t all just get along, because we live on a finite planet with finite resources, and at the end of the day it is Darwin who runs the show, not Jesus.  (Which is, ironically, a big part of the reason that belief in Jesus is so persistent and pervasive.)