Group Processes &Intergroup Relations, Ahead of Print.
Herder–farmer conflicts in West Africa have caused thousands of deaths in recent years. Many conflicts are triggered by localized events that rapidly spiral out of control. What leads specific interpersonal conflicts to scale up into intergroup violence? We propose that such conflicts are rooted in identity and ritual dynamics. We present evidence that participants in Mambila traditions of masquerade initiation in Cameroon report especially strong identity fusion, a visceral sense of oneness with the ingroup. Results showed that men strongly fused to their ethnic ingroup were especially willing to fight and die for it. Overall, our findings provide evidence that when ordinary conflicts develop between groups that differ sharply on ethnic and religious lines, there is grave risk that fused persons will escalate violence. Understanding these processes may inform future development of new strategies to prevent or ameliorate intergroup conflicts of this kind.