Much has been written on the Spanish Civil War, the international dimensions of this fratricidal conflict, and foreign volunteers who joined the International Brigades in order to help in the defense of the Spanish Republic against the nationalist rebels headed by General Francisco Franco. The chapters in this volume aim to shed light on the lesser-known narratives and perspectives of individuals whose stories have remained unexplored and underrepresented in the context of the Spanish Civil War. The volume title pays homage to Maya Angelou’s powerful quote, “There is no greater agony than bearing an untold story inside you.” The authors argue that within the realm of historical research, it is our responsibility to uncover and share narratives that have been marginalized or forgotten. The goal of this research is to contribute to a more inclusive and comprehensive understanding of this historical period. By focusing on the experiences of women who participated as volunteers in the International Brigades and the specific challenges faced by Jewish individuals and communities during the Spanish War, this volume seeks to enrich the existing research landscape.