This affair was much spoken of at the time, as well it might be. Questions were raised upon it in the Senate. Cato insisted that Caesar had massacred a defenceless people in a time of truce, that he had broken the law of nations, and that he ought to be given up to the Germans. The sweeping off the earth in such a manner of a quarter of a million human creatures, even in those unscrupulous times, could not be heard of without a shudder. The irritation in the Senate can hardly be taken as disinterested. Men who had intrigued with Ariovistus for Caesar's destruction, needed not to be credited with feelings of pure humanity when they made the most of the opportunity. But an opportunity had undoubtedly been offered them. The rights of war have their limits. No living man in ordinary circumstances recognized those limits more than Caesar did. No commander was more habitually merciful in victory. In this case the limits had been ruthlessly exceeded. The Germans were not indeed defending their own country; they were the invaders of another; but they were a fine brave race, overtaken by fate when doing no more than their forefathers had done for unknown generations. The excuse for their extermination was simply this: that Caesar had undertaken the conquest of Gaul for the defence of Italy. A powerful party among the Gauls themselves were content to be annexed to the Roman Empire. The patriots looked to the Germans to help them in driving out the Romans. The Germanizing of Gaul would lead with certainty to fresh invasions of Italy; and it seemed permissible, and even necessary, to put a stop to these immigrations once for all, and to show Gauls and Germans equally that they were not to be.