War or Peace–Curse or Blessing?

Man says he wants peace, but he constantly engages and fights in war. He does not know the way of peace. What is the origin of war? Why are we currently hearing so much about the need to produce more and more weapons in order to prepare for war? Why don’t most people understand that war is a curse and that wars will only lead to more wars? Will there ever be peace on earth? If so, what is required? And can true Christians who have come out of this world of war be blessed with peace today?