 Complete the following phrase:  During the reign of Augustus from 27 BCE until 14 CE, the Roman empire became established in Gaul, with the Rhine as a border. From 12 to 9 BCE, the Roman Empire dominated the region between the Rhine and the Weser, and possibly also the region between the Weser and Elbe, apparently aiming to create a new Roman province in Germania. Following the Roman defeat at the 