War makes the world go round. Man kind is able to see past everything but the strength of the opposition. Say you have a great productive city with oil and lots of doctors and firemen and what not, but no Army, and another country with a massive army, but nothing else, the Army country will just charge straight into it and take it, a country can't defend itself by anything but it's manpower and strength, it's not like a country is going to say 'Well our average IQ is better than yours so we can conquer you" it's all to do with capturing the enemy. Peace does not work, the more we put war off, the worse it comes to us, it gives people jobs to manufacture weapons, War, unfortunately, is an important part of this world.
