On June 11, 1963, Thomas Merton wrote a letter to Jacque Maritain:
…we live in an atmosphere in which the very real concept of negotiation cannot possibly be taken seriously. But one of the real messages of Pacem in Terris is that to be a Christian today one must be able to have enough confidence in the divine image in human nature to believe that there can be some vestige of truthfulness in man and to act accordingly. For the first step is going to have to be a serious indication that we are willing to trust an enemy, even in an issue that may involve our own survival. Inability to do this means the end of our civilization. That is the problem in a nutshell.
Consider now the intransigence of Zionism and Christian Zionism with Rabbi Yisroel Weiss’ view: