The situation in Britain was even more difficult. The British provinces were isolated, lacking support from the Empire, and the soldiers supported the revolts of Marcus (406–407), Gratian (407), and Constantine III. Constantine invaded Gaul in 407, occupying Arles, and while Constantine was in Gaul, his son Constans ruled over Britain. By 410, Britain may have been told to look after its own affairs and expect no aid from Rome, although it has been argued that the order was sent to the people of Bruttium in Italy, not Britain.