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"
Isca Augusta Isca Augusta Isca, variously specified as Isca Augusta or Isca Silurum, was the site of a Roman legionary fortress and settlement or "vicus", the remains of which lie beneath parts of the present-day suburban village of Caerleon in the north of the city of Newport in South Wales. The site includes Caerleon Amphitheatre and is protected by Cadw. Headquarters of the Legion "II Augusta", which took part in the invasion under Emperor Claudius in AD 43, Isca is uniquely important for the study of the conquest, pacification and colonisation of Britannia by the Roman army. It was one of only