A blood feud is a long-standing conflict between families or groups, often involving acts of revenge. These disputes typically arise from perceived wrongs, such as murder or insult, leading to a cycle of retaliation. Blood feuds can escalate over generations, causing significant social and familial strife. Historically, blood feuds have been prominent in various cultures, including the Montagues and Capulets in Shakespeare's "Romeo and Juliet" and the Hatfields and McCoys in American folklore. Such conflicts can disrupt communities and lead to violence, making resolution challenging without external intervention.