Actually men go to war because international bankers periodically bankroll both sides of the conflict to make billions of dollars off said young mens blood, these despicable monsters are the finest families in the world, Rothschilde, Morgan, Rockefeller etcQuote from bitrend:
Not necessary greed but excitement, challenge, feel the win and defeat. That's why men go to war and only kill the strong ones, but not women and childrens.