Slap Shot
I got nothing
In the simplest of terms you have 2 sides that don't feel safe, and have lived that way for decades which permeates a person's fiber as generation after generation grows up in that milieu. Until these fears can be quelled to a much greater degree nothing is going to change. It's time for the global community to slap them both with significant economic sanctions and a message of, "Figure it out or fuck off".