By this time the Danes
had already
conquered much of
Northumbria, parts of Mercia, and East Anglia, and
threatened to subdue Wessex itself
Alfred
inflicted on them their first major reverse at the Battle
of Edington (878)
Alfred
began to win back
Danish-occupied territory by capturing
the former Mercian town
of London (886)
Alfred stole the military
initiative from the
Danes by reorganizing
his forces into a standing army, building a navy, and
establishing a network
of burhs (fortified centres)
He forged close ties
with other
English peoples not
under Danish rule
He provided his
successors with the means
to reconquer the Danelaw
and secure the unity of England