 Specifically, the ninth- to twelfth-century "Anglo-Saxon Chronicle" reports that Æthelræd II, King of the English unleashed a devastating campaign against the Cumbrian kingdom in 1000.Although the English are said to have ravaged nearly all of the country, the English naval forces based at Chester failed to link up with the land forces—seemingly due to adverse weather conditions—and are recorded to have attacked the Isle of Man instead.On one hand, this island assault could indicate that the English fleet had originally intended to penetrate the Firth of Clyde region before improvising an attack in the Solway Firth.