In the 21st century, the concept of negative capability—defined as the capacity to tolerate uncertainty and engage in deep reflection rather than reacting impulsively—has become increasingly relevant. This paper explores how transgenerational trauma, particularly in the context of Israeli-Palestinian and other global conflicts, undermines this crucial capability. Such trauma often leads to narcissistic injuries and rage, further eroding negative capability at both individual and collective levels. We examine the pervasive feelings of insecurity and threat, introducing the concept of the “soldier’s matrix,” a psychological framework driven by these emotions. This sets the stage for an analysis of reactions to traumatic events, linking narcissistic dynamics with deeper relational traumas. To clarify this complex interplay, we draw on concepts such as regressed relations, chosen traumas, collective narcissism, and social identity theory. We also focus on diagnosing the factors that hinder mentalization and obstruct the restoration of negative capability. Finally, we propose a comprehensive three-layered intervention for conflicted parties, emphasizing the need to rebuild reflective spaces through education, international cooperation, and leadership from political and social figures.