The article outlines aspects of psychoanalytic and group analytic thinking about conflict between large groups in relation to the tragic and violent Israel/Palestine impasse and to large-group dynamics involving Western onlookers, including the writer. As a Western observer, I declare my bias by describing the origin of my interest in the situation in Israel. Aspects of Palestinian and Israeli political culture that block the path to peace are discussed. KEYWORDS conflict, Israel, large group, matrix, negotiation, Palestine 1 | MY BIAS AND " OBSERVER" MATRIX I am a secular Jewish psychotherapist living in New Zealand, born in England. As a youth in the 1960s I lived and worked for some years as a ploughman in a Kibbutz, and later served in the Israel Defense Forces (IDF), Nahal Brigade.Over the years I have followed the bitter and intractable conflict between Israelis and Palestinians, and would like to see a peaceful resolution that respects the human rights of both Jews and Arabs.Two peer reviewers of an early version of this paper differed about whether it merited publication. One reviewer considered that, although the paper did not address international political influences on the conflict and neglected to question why Hamas adopted an essentialist anti-Israel posture, it would serve as a starting point for discussion; this reviewer also commented that the psychoanalytic and group analytic thinking was blended well with the personal. The other reviewer thought that the paper, although well written, reasonably balanced, and nonpartisan, was psychologically naïve and pretentious, and would not contribute to PPI.Initially, I wanted to scrap the paper. Later I came to think that the complexity of the topic, the passionate and conflicting sensitivities involved, as well as the wide and conflicting range of extant discourses, might defeat any writer who presumed to offer a comprehensive and definitive understanding of the conflict. I will not attempt to do this. I will also refrain from offering original psychological or group analytic insight, as this is beyond my ability and possibly irrelevant, given that the situation in Israel/Palestine changes daily and the conflict is over a century old. President Trump's recent pronouncement on the status of Jerusalem has proved incendiary, and conciliatory diplomacy seems everywhere absent. In this paper, I intend to review thinking from various disciplines about the conflict in the hope that those interested will join a conversation; I acknowledge my naïvety and hope to learn from concerned others.