In 406 AD several barbaric invasions accured in which the Vandals, Burgundians, Alans, and the Sueves enter Gaul, cutting off contact between the British Isles and Rome. At the time of this invasion, the provinces of Britain were in revolt, after the unsuccessful rules of several upsurpers, which ended with the control under Constantine early in 407. The people rallied under their new ruler, who led several campaigns through Gaul, gathering support from the locals within the European mainland. By May 408 much of Gaul and the Rhine frontier had been secured by Constantine's forces, occupying the cities such as Arles, where the locals paid tribute to the government in Britannia in exchange for aid. Recognized for his leadership the Emperor Honorius sent aid to support to the effort in the no