+13.+ We must now return to Hasdrubal in Iberia. He had during this period been conducting his command with ability and success, and had not only given in general a great impulse to the Carthaginian interests there, but in particular had greatly strengthened them by the fortification of the town, variously called Carthage, and New Town, the situation of which was exceedingly convenient for operations in Libya as well as in Iberia. I shall take a more suitable opportunity of speaking of the site of this town, and pointing out the advantages offered by it to both countries: I must at present speak of the impression made by Hasdrubal’s policy at Rome. Seeing him strengthening the Carthaginian influence in Spain, and rendering it continually more formidable, the Romans were anxious to interfere in the politics of that country. They discovered, as they thought, that they had allowed their suspicions to be lulled to sleep, and had meanwhile given the Carthaginians the opportunity of consolidating their power. They did not venture, however, at the moment to impose conditions or make war on them, because they were in almost daily dread of an attack from the Celts. They determined therefore to mollify Hasdrubal by gentle measures, and so to leave themselves free to attack the Celts first and try conclusions with them: for they were convinced that, with such enemies on their flank, they would not only be unable to keep their hold over the rest of Italy, but even to reckon on safety in their own city. Accordingly, while sending envoys to Hasdrubal, and making a treaty with him by which the Carthaginians, without saying anything of the rest of Iberia, engaged not to cross the Iber in arms, they pushed on the war with the Celts in Italy. +14.+ This war itself I shall treat only summarily, to avoid breaking the thread of my history; but I must go back somewhat in point of time, and refer to the period at which these tribes originally occupied their districts in Italy. For the story I think is worth knowing for its own sake, and must absolutely be kept in mind, if we wish to understand what tribes and districts they were on which Hannibal relied to assist him in his bold design of destroying the Roman dominion. I will first describe the country in which they live, its nature, and its relation to the rest of Italy; for if we clearly understand its peculiarities, geographical and natural, we shall be better able to grasp the salient points in the history of the war. [Sidenote: The Geography of Italy.] [Sidenote: Col di Tenda.]