If the rulers of the world were capable of more than a one eyed argument and could come to consensus we would have no wars. We would have utopia, but alas that is but a dream... so we deal with what we have been given- A less than perfect world where one must chose not between good and evil but the lesser of two evils for to do nothing is the worst possible choice.
"The purpose of fighting is to win. There is no possible victory in defense. The sword is more important than the shield and skill is more important than either. The final weapon is the brain. All else is supplemental." - John Steinbeck