Neck-Biters and Belly-Gazers 
 Empires are like dogs. They have two ways to establish their dominance. A dog can attack another dog and bite its neck until the victim gives up. Or a dog can intimidate another dog. A dog can be so fearsome that its victim just rolls over, shows its belly, and surrenders. The winner gains victory just by gazing down on the loser’s belly. 
·  Empires also have two ways to gain power. [CommonDreams]