IOTL, Edmund Ironside, son of Æthelred the Unready, wrested control of (most of) England back from Cnut the Great in a series of campaigns, finally ending with a treaty granting Wessex to Edmund and Mercia to Cnut. Edmund died under fairly mysterious cirmcumstances months later, and Cnut succeeded him after sending his family into exile. Had Edmund lived, would he have resumed war with the Danes? Would his campaigns have been success? Will war break out between himself and his half-siblings?