I have finished reading The Territorial Imperative. Thanks arch for the recommendation.
The solution to war, if Ardrey is to be believed, is to ensure there is just enough natural hazards everywhere to keep us distracted from killing one another.
Every time we have a common problem facing the country, people forget their tribes, bigotry and hate for a moment, even if it is just a few hours and direct their energy to helping one another.
The million dollar question is how to cause this natural events. That I leave to others to come up with.