This day had frustrated the scheme of the Helvetii to establish for themselves new settlements on the Atlantic Ocean, and handed them over to the pleasure of the victor; but it had been a hot day also for the conquerors.

Caesar, who had reason for not altogether trusting his staff of officers, had at the very outset sent away all the officers' horses, so as to make the necessity of holding their ground thoroughly clear to his troops; in fact the battle, had the Romans lost it, would have probably brought about the annihilation of the Roman army.

The Roman troops were too much exhausted to pursue the conquered with vigour; but in consequence of the proclamation of Caesar that he would treat all who should support the Helvetii as like the Helvetii themselves enemies of the Romans, all support was refused to the beaten army whithersoever it went-- in the first instance, in the canton of the Lingones (about Langres)--and, deprived of all supplies and of their baggage and burdened by the mass of camp-followers incapable of fighting, they were under the necessity of submitting to the Roman general.
The Helvetii Sent back to Their Original Abode The lot of the vanquished was a comparatively mild one.
The Haedui were directed to concede settlements in their territory to the homeless Boii; and this settlement of the conquered foe in the midst of the most powerful Celtic cantons rendered almost the services of a Roman colony.

The survivors of the Helvetii and Rauraci, something more than a third of the men that had marched forth, were naturally sent back to their former territory.
It was incorporated with the Roman province, but the inhabitants were admitted to alliance with Rome under favourable conditions, in order to defend, under Roman supremacy, the frontier along the upper Rhine against the Germans.

Only the south-western point of the Helvetic canton was directly taken into the possession of the Romans, and there subsequently, on the charming shore of the Leman lake, the old Celtic town Noviodunum (now Nyon) was converted into a Roman frontier-fortress, the "Julian equestrian colony."(35) Caesar and Ariovistus Negotiations Thus the threatening invasion of the Germans on the upper Rhine was obviated, and, at the same time, the party hostile to the Romans among the Celts was humbled.