All Gaul being now subdued, so high an opinion of this war was spread among the barbarians that ambassadors were sent to Cæsar by those nations that dwelt beyond the Rhine, to promise that they would give hostages and execute his commands. He ordered these embassies to return to him at the beginning of the following summer, because he was hastening into Italy and Illyricum. Having led his legions into winter quarters among the Carnutes, the Andes, and the Turones, which states were close to those in which he had waged war, he set out for Italy, and a public thanksgiving of fifteen days was decreed for these achievements, an honour which before that time had been conferred on none. _III.--War by Land and Sea in Gaul_ When Cæsar was setting out for Italy, he sent Servius Galba with the twelfth legion and part of the cavalry against the Nantuates, the Veragri, and the Seduni, who extend from the territories of the Allobroges and the Lake of Geneva and the River Rhone to the top of the Alps. The reason for sending him was that he desired that the pass along the Alps, through which the Roman merchants had been accustomed to travel with great danger, should be opened. Galba fought several successful battles, stormed some of their forts, and concluded a peace. He then determined to winter in a village of the Veragri, which is called Octodurus. But before the winter camp could be completed the tops of the mountains were seen to be crowded with armed men, and soon these rushed down from all parts and discharged stones and darts on the ramparts. The fierce battle that followed lasted for more than six hours. During the fight more than a third part of the army of 30,000 men of the Seduni and the Veragri were slain, and the rest were put to flight, panic-stricken. Then Galba, unwilling to tempt fortune again, after having burned all the buildings in that village, hastened to return into the province, urged chiefly by the want of corn and provision. As no enemy opposed his march, he brought his forces safely into the country of the Allobroges, and there wintered. These things being achieved, Cæsar, who was visiting Illyricum to gain a knowledge of that country, had every reason to suppose that Gaul was reduced to a state of tranquillity. For the Belgæ had been overcome, the Germans had been expelled, and the Seduni and the Veragri among the Alps defeated. But a sudden war sprang up in Gaul. The occasion of that war was this. P. Crassus, a young man, had taken up his winter quarters with the seventh legion among the Andes, who border on the Atlantic Ocean. As corn was scarce, he sent out officers among the neighbouring states for the purpose of procuring supplies. The most considerable of these states was the Veneti, who have a very great number of ships with which they have been accustomed to sail into Britain, and thus they excel the rest of the states in nautical affairs. With them arose the beginning of the revolt.