Limes Britannicus rapidly to the west and north. Many regions of Britain continued to be governed by the Roman model even after the Romans left, but this practice soon ceased with the continuous encroachment of Anglo-Saxon renegades. With the collapse of the old administrative districts into independent small kingdoms, the jointly maintained provincial army also lost its Roman character. Four years after the Roman invasion, the conquered territory extended roughly as far as a line from Exeter " (Isca Dumnoniorum) " to Lincoln " (Lindum Colonia)", an important intra-Britannic transport hub. Around 55 AD the main camp of the "Legio II Augusta"
National Roman Legion Museum National Roman Legion Museum The National Roman Legion Museum () is a museum in Caerleon, near Newport, south-east Wales. It is one of three Roman sites in Caerleon, along with the Baths museum and the open-air ruins of the amphitheatre and barracks. It is part of the wider network of Amgueddfa Cymru – National Museum Wales. Roman Wales was the farthest point west that the Roman Empire in Roman Britain extended to, and as a defence point the fortress at Isca Augusta, now Caerleon, built in 75 AD, was one of only three permanent Roman Legionary fortresses in Roman Britain.