Ariovistus sent thither about 16,000 of his light troops and all his cavalry, to intimidate the Romans and impede the works.
Few of the barbarians escaped, but among these was Ariovistus.
He commissioned them to learn what Ariovistus had to say, and to report to him.
Ariovistus all this time kept his army in camp, but engaged daily in cavalry skirmishes.
He proposed to Ariovistus an interview "at which they aright treat in common of affairs of importance for both."
Ariovistus, with fifteen thousand warriors at his back, was not slow in responding to the appeal.
Ariovistus himself found a small boat, in which, with one or two followers, he succeeded in getting across the stream.
The next day but one Ariovistus proposed a renewal; but Caesar refused, having decided to bring the quarrel to an issue.
He had defeated the Helvetians and driven Ariovistus out of the country.
Several days in succession he led out his legions from their camp, and offered battle; but Ariovistus remained within his lines.