belief and learning. Monasticism, and not just the church, was at the centre of Anglo-Saxon Christian life. Western monasticism, as a whole, had been evolving since the time of the Desert Fathers, but in the seventh century, monasticism in England confronted a dilemma that brought to question the truest representation of the Christian faith. The two monastic traditions were the Celtic and the Roman, and a decision was made to adopt the Roman tradition. Monasteria seem to describe all religious congregations other than those of the bishop. In the 10th century, Dunstan brought Athelwold to Glastonbury, where the two of them set up a monastery on Benedictine lines. For many years, this was the only monastery in England that strictly followed the Benedictine Rule and observed complete monastic discipline. What Mechthild Gretsch calls an "Aldhelm Seminar" developed at Glastonbury, and the effects of this seminar on the curriculum of learning and study in Anglo-Saxon England were enormous. Royal power was put behind the reforming impulses of Dunstan and Athelwold, helping them to enforce their reform ideas. This happened first at the Old Minster in Winchester, before the reformers built new foundations and refoundations at Thorney, Peterborough, and Ely, among other places. Benedictine monasticism spread throughout England, and these became centers of learning again, run by people trained in Glastonbury, with one rule, the works of Aldhelm at the center of their curricula but also influenced by the vernacular efforts of Alfred. From this mixture sprung a great flowering of literary production. Fighting and warfare Soldiers throughout the country were summoned, for both offensive and defensive war; early armies consisted essentially of household bands, while later on men were recruited on a territorial basis. The mustering of an army, annually at times, occupied an important place in Frankish history, both military and constitutional. The English kingdoms appear to have known no institution similar to this. The earliest reference is Bede's account of the overthrow of the Northumbrian Æthelfrith by Rædwald overlord of the southern English. Rædwald raised a large army, presumably from among the kings who accepted his overlordship, and "not giving him time to summon and assemble his whole army, Rædwald met him with a much greater force and slew him on the Mercian border on the east bank of the river Idle." At the Battle of Edington in 878, when the Danes made a surprise attack on Alfred at