To this Transalpine Gaul was afterward added.

The province so named, possessed at the time by the Romans, was called "Narbonensis," a country comparatively insignificant, running from the Alps to the Pyrenees along the Mediterranean.

The Gaul or Gallia of which Caesar speaks when, in the opening words of his Commentary, he tells us that it was divided into three parts, was altogether beyond the Roman province which was assigned to him.

Caesar, when he undertook his government, can hardly have dreamed of subjecting to Roman rule the vast territories which were then known as Gallia, beyond the frontiers of the Empire, and which we now call France.
But he caused himself to be supported by an enormous army.

There were stationed three legions on the Italian side of the Alps, and one on the other.