Peace is expensive indeed. And accepting the fact that peace is really expensive can be considered half the solution to a given bloody confrontation. Crying for peace without being ready to pay the price is dishonesty at worse, and misleading at best. No cheap peace will be sustainable and everlasting. Peace, that is acquired with a cheap sacrifice, is not genuine and will not hold for a long time.
Attitudes are critical to the reign of peace.
Many times, belligerent attitudes lead to unwarranted turmoil and bloodshed. People with belligerent attitudes do not think in strategic terms and are preoccupied with winning the war that they ignite. The common man, who was not part of the problem, ends up paying more than the perpetrators. Societies with a high level of appreciation for life will not heed to the path of war without thinking twice. A war without reason and justification is never won, it is always lost even when militarily, one would think otherwise.