The tract of country between the Trebia and the Po was then inhabited by the Gauls, who, in this contest of two very powerful states, by a doubtful neutrality, were evidently looking forward to the favour of the conqueror.

The Romans submitted to this conduct of the Gauls with tolerable satisfaction, provided they did not take any active part at all; but the Carthaginian bore it with great discontent, giving out that he had come invited by the Gauls to set them at liberty.

On account of that resentment, and in order that he might at the same time maintain his troops from the plunder, he ordered two thousand foot and a thousand horse, chiefly Numidians, with some Gauls intermixed, to lay waste all the country straightforward as far as the banks of the Po.

The Gauls, being in want of assistance, though they had up to this time kept their inclinations doubtful, are forced by the authors of the injury to turn to some who would be their supporters; and having sent ambassadors to the consul, they implore the aid of the Romans in behalf of a country which was suffering for the too great fidelity of its inhabitants to the Romans.

Neither the cause nor the time of pleading it was satisfactory to Cornelius; and the nation was suspected by him, both on account of many treacherous actions, and though others might have been forgotten through length of time, on account of the recent perfidy of the Boii.