+19.+ They abided by this treaty for thirty years: but at that time, alarmed by a threatening movement on the part of the Transalpine tribes, and fearing that a dangerous war was imminent, they diverted the attack of the invading horde from themselves by presents and appeals to their ties of kindred, but incited them to attack the Romans, joining in the expedition themselves. They directed their march through Etruria, and were joined by the Etruscans; and the combined armies, after taking a great quantity of booty, got safely back from the Roman territory. But when they got home, they quarrelled about the division of the spoil, and in the end destroyed most of it, as well as the flower of their own force. This is the way of the Gauls when they have appropriated their neighbours’ property; and it mostly arises from brutal drunkenness, and intemperate feeding. In the fourth year after this, the Samnites and Gauls made a league, gave the Romans battle in the neighbourhood of Camerium, and slew a large number. Incensed at this defeat, the Romans marched out a few days afterwards, and with two Consular armies engaged the enemy in the territory of Sentinum; and, having killed the greater number of them, forced the survivors to retreat in hot haste each to his own land. Again, after another interval of ten years, the Gauls besieged Arretium with a great army, and the Romans went to the assistance of the town, and were beaten in an engagement under its walls. The Praetor Lucius[150] having fallen in this battle, Manius Curius was appointed in his place. The ambassadors, sent by him to the Gauls to treat for the prisoners, were treacherously murdered by them. At this the Romans, in high wrath, sent an expedition against them, which was met by the tribe called the Senones. In a pitched battle the army of the Senones were cut to pieces, and the rest of the tribe expelled from the country; into which the Romans sent the first colony which they ever planted in Gaul—namely, the town of Sena, so called from the tribe of Gauls which formerly occupied it. This is the town which I mentioned before as lying on the coast at the extremity of the plains of the Padus. [Sidenote: B.C. 282.] +20.+ Seeing the expulsion of the Senones, and fearing the same fate for themselves, the Boii made a general levy, summoned the Etruscans to join them, and set out to war. They mustered their forces near the lacus Vadimonis, and there gave the Romans battle; in which the Etruscans indeed suffered a loss of more than half their men, while scarcely any of the Boii escaped. But yet in the very next year the same two nations joined forces once more; and arming even those of them who had only just reached manhood, gave the Romans battle again; and it was not until they had been utterly defeated in this engagement that they humbled themselves so far as to send ambassadors to Rome and make a treaty.[151]