 Complete the following phrase:  Caesars wars helped establish the term Germania. The initial purpose of the Roman campaigns was to protect Transalpine Gaul by controlling the area between the Rhine and the Elbe. In AD 9 a revolt of their Germanic subjects headed by the supposed Roman ally, Arminius, along with his decisive defeat of Publius Quinctilius Varus and the destruction of 3 Roman legions in the surprise attack on the Romans at the 