What are the motifs in Mila 18 by Leon Uris?

Man's Inhumanity to man is a recurring idea. As Von Epp stated to Chris De Monti, man is the only species that murders its own on a wholesale scale. According to him, this inhumanity is within man's basic nature, as evidenced by history. Since the beginning of time, conquest of one group by another has occurred without concern for destruction and devastation caused. Thus, innocents, including women, children, and other civilians, are slaughtered by victors and vanquished alike.