If Alfred's strategy was to create peace then it was a failure as shortly after, Hastein launched a second raid along the Thames valley and from there along the River Severn. Hastein was pursued all the way by Aethelred and a combined Mercian and West Saxon army, reinforced by a contingent of warriors from the Welsh kingdoms. Eventually the Viking army was trapped at Buttington, this was possibly the island of Buttington on the Severn near Welshpool, Powys, then at the resulting Battle of Buttington several weeks later they fought their way out, and lost many men, and returned to the fortress at Shoebury. According to the annals: