How was the Danelaw a threat to Edward the Elder's Reign?

by Celestial_Archer

Currently studying History and I'm aware that there were three threats to Edward. The challenge from Aethelwold, losing control of Mercia and the Danelaw. But I'm really confused about the topic of the Danelaw. If it was to unite the Danes and allow their own territory for Guthrum, why would it be a threat to Edward the Elder?

theizzyrobbo

guthrum is from alfred's time my understanding is that edward wanted to create a purely anglo saxon society so the danes were a threat to this, additionally he was worried about a viking alliance with strathclyde or "scotland" as it threatened the mercian territory of which he was considered overlord