This article investigates the motivations and affiliations of Syrian fighters within the Third Corp, emphasizing the role of emotionality, identity transformation, and fusion in shaping fighter behavior and decision-making. Through qualitative analysis of interviews with fighters, the study explores how episodic memories, rituals, and shared dysphoric experiences contribute to a complex sense of belonging and solidarity, challenging traditional notions of identity in conflict settings. By employing the concept of identity fusion, the research highlights the construction of psychological kinship and the profound impact of shared emotional dynamics on group cohesion. This study provides insights into the genesis, evolution, and potential resolutions of conflicts, offering a nuanced understanding of fighters' motivations and the implications for peace processes in Syria and beyond.