The Fates of Nations: A Biological Theory of History

able aggression agriculture already American ancient animal armies armored attack barbarians battle better breeding strategy British called caste cause centuries city-states civilized classes conquest crowded ecological empire English Europe European expanding fact fighting follow force fought France French gave German give Greek grow growth habits happened hope human hundred increase individual invented island Italy keep land learned legions lemmings less living look mass means military necessary never niche niche-space nomad numbers once Persian poor population possible poverty predicts pressed produce raise ranks result rising Roman Rome Russian seems social society soldiers space steppes success superior technical technique things thousand tion trade trained turned victory wars wealth weapons West young