Attempts to understand how Roman Britain ends and Anglo-Saxon England begins have been undermined by the division of studies into pre-Roman, Roman and early medieval periods. This groundbreaking new study traces the history of British tribes and British tribal rivalries from the pre-Roman period, through the Roman period and into the post-Roman period. It shows how tribal conflict was central to the arrival of Roman power in Britain and how tribal identities persisted through the Roman period and were a factor in three great convulsions that struck Britain during the Roman centuries. It explores how tribal conflicts may have played ... Read morea major role in the end of Roman Britain, creating a 'failed state' scenario akin in some ways to those seen recently in Bosnia and Iraq, and brought about the arrival of the Anglo-Saxons. Finally, it considers how British tribal territories and British tribal conflicts can be understood as the direct predecessors of the Anglo-Saxon kingdoms and Anglo-Saxon conflicts that form the basis of early English History.