"the 9th c. Viking invasion of England" . "*Northumbria" . "Viking raids" . "Anglo-Saxon kingdoms:" . "the invasion of the Danes" . . "invasion of Northumbria" . . "Great Summer Army" . "Foundation ofDanelaw" . "Great Danish Army" . "GreatVikingArmy" . "common enemy" . "Denmark" . "an invasion by the Danes" . "Great Army" . "Kingdom of Alba" . "Danish invasion" . "the invasion of England" . "Great Heathen Army" . . . . "*Norse\u2013Gaels" . "army" . . "the great army" . . "Danish Army" . "*Norwegians" . "Vikings" . . . "Viking army" . . . "*Danes" . "Great Viking Army" . "army of Ubba and Halfdan" . "Great Heathen Army" . . . "Viking invasion" . . "Kingdom of Strathclyde" . . "Invasion of the Great Heathen Army" . . "Danish army" . "Danes in 870" . "invasion of England" . "*East Anglia" . "Viking Invasion" . . "Viking invasion of England" . "Unknown" . "*Swedes" . "Danes" . "*Wessex" . . . . . "''mycel h\u00E6\u00FEen here''" . "Viking Great Army" . . . "*Mercia" . . . . "'Great Army'" . "Treaty of Wedmore" .