Feuding – defined as autonomous exercise of violence based on enmity or as a means of violent conflict management – was a widespread practice in many European countries. In this volume practices of feuding being customary on the Borders between England and Scotland in the late Middle Ages and in Early Modern Times, in late-medieval France, Hungary and Poland, in the early-modern Ruthenian-Ukrainian border regions and in Eastern Africa during the 19th century are analyzed. Furthermore the context in which feuding took place and the groups resorting to autonomous violence are taken into consideration. Thus a contribution is made to distinguish between feuds and wars.