Maybe Pope Francis could put together a coalition of religious leaders to lead their flocks on a massive march to Damascus, Teheran, Jerusalem etc. etc. to end killing.
Stop killing as an acceptable option!!
Gandhi's fast stopped the killing between Hindu's and Moslems, at least for a while.
Imagine the Pope leading a march from Rome to Damascus followed by every Cardinal, bishop, priest, nun and believers to join masses of Moslems, Jews, Hindus etc etc-
It's going to take more than talking about peace to actually bring it about.
Yeah, I know- who is going to take that kind of risk for peace??