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,[11] 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.[2] According to the annals: