When the old home had become too narrow for the Roman burgesses and they were in danger of decay, the senate's policy of Italian conquest saved them from ruin.
Now the Italian home had become in its turn too narrow; once more the state languished under the same social evils repeating themselves in similar fashion only on a greater scale.

It was a brilliant idea, a grand hope, which led Caesar over the Alps--the idea and the confident expectation that he should gain there for his fellow-burgesses a new boundless home, and regenerate the state a second time by placing it on a broader basis.
Caesar in Spain The campaign which Caesar undertook in 693 in Further Spain, may be in some sense included among the enterprises which aimed at the subjugation of the west.

Long as Spain had obeyed the Romans, its western shore had remained substantially independent of them even after the expedition of Decimus Brutus against the Callaeci( 1), and they had not even set foot on the northern coast; while the predatory raids, to which the subject provinces found themselves continually exposed from those quarters, did no small injury to the civilization and Romanizing of Spain.

Against these the expedition of Caesar along the west coast was directed.
He crossed the chain of the Herminian mountains (Sierra de Estrella) bounding the Tagus on the north; after having conquered their inhabitants and transplanted them in part to the plain, he reduced the country on both sides of the Douro and arrived at the northwest point of the peninsula, where with the aid of a flotilla brought up from Gades he occupied Brigantium (Corunna).

By this means the peoples adjoining the Atlantic Ocean, Lusitanians and Callaecians, were forced to acknowledge the Roman supremacy, while the conqueror was at the same time careful to render the position of the subjects generally more tolerable by reducing the tribute to be paid to Rome and regulating the financial affairs of the communities.
But, although in this military and administrative debut of the great general and statesman the same talents and the same leading ideas are discernible which he afterwards evinced on a greater stage, his agency in the Iberian peninsula was much too transient to have any deep effect; the more especially as, owing to its physical and national peculiarities, nothing but action steadily continued for a considerable time could exert any durable influence there.
Gaul A more important part in the Romanic development of the west was reserved by destiny for the country which stretches between the Pyrenees and the Rhine, the Mediterranean and the Atlantic Ocean, and which since the Augustan age has been especially designated by the name of the land of the Celts--Gallia--although strictly speaking the land of the Celts was partly narrower, partly much more extensive, and the country so called never formed a national unity, and did not form a political unity before Augustus.
For this very reason it is not easy to present a clear picture of the very heterogeneous state of things which Caesar encountered on his arrival there in 696.
The Roman Province Wars and Revolts There In the region on the Mediterranean, which, embracing approximately Languedoc on the west of the Rhone, on the east Dauphine and Provence, had been for sixty years a Roman province, the Roman arms had seldom been at rest since the Cimbrian invasion which had swept over it.
In 664 Gaius Caelius had fought with the Salyes about Aquae Sextiae, and in 674 Gaius Flaccus,( 2) on his march to Spain, with other Celtic nations.