The kingdom of Sicily plays a huge part in the history of the Norman people; their conquest brought in a new era of invasion, interaction and integration in the Mediterranean, However, much previous scholarship has tended to concentrate on their activities in England and the Holy Land. This volume aims to redress the balance by focusing on the Hautevilles, their successors and their followers. It considers the operational, tactical, technical and logistical aspects of the conduct of war in the South throughout the eleventh and twelfth centuries, looking also at its impact on Italian and Sicilian multi-cultural society. Topics include the narratives of the Norman expansion, exchanges and diffusion between the military cultures of the Normans and the peoples they encountered in the South, and their varied policies of conquest, consolidation and expansion in the different operational theatres of land and sea.