Peace in the middle east Israel Palestine and the new Jerusalem...hmm oh they await for there kingdom to be built.
You don't teach, you just live your life as you want and others will see you and just emulate what you are doing. If you live with peace in your heart then others can recognize that and follow suit, hopefully.
you are macrocosm in microcosm. your being at peace with your self is the key. you will percive peace.