We, who think like animals living in small groups, must structure a global world. We believe in universal human rights and believe racism and war are wrong. On the other hand, it is our nature to be cooperative and loving almost exclusively with the members of the group to which we feel we belong.
War is evitable if conditions are such that the costs of making war are higher than the benefits.
Armies are a purely human invention. Most soldiers who go to war nowadays don't even do it because they're inherently aggressive.
After World War II it was decided that, in order to prevent the Germans and the French from having another war, it would be better to tie them together into one economic pact so they would invest in each other and have mutual stakes. Until now, that has worked to prevent warfare between the two.
