with Legio IV Macedonica, which was transferred from Spain to the Rhine to replace the troops sent to Britain, and (3) Britons, who probably began to arrive from the newly conquered areas a few years later.[205] Epigraphical evidence adds to the list a few regiments from the Danubian provinces and some corps of oriental archers.[206] In other provinces the same policy can be traced, although the evidence is less abundant. In Africa, for example, the deserter Tacfarinas seems to have served in his own province,[207] and in Palestine we find Samaritan regiments garrisoning Caesarea.[208] On the whole there is sufficient evidence to show that although each of the great frontier armies contained imported elements, in particular the ubiquitous Thracian and oriental archers, the original policy of the imperial government was to draw the auxilia in each case from the nearest recruiting-areas. Both the advantages and the defects of this system are sufficiently obvious. It saved trouble, a reason which had already commended it to the administrators of the Republic, and it avoided the dangerous and widespread discontent which, as the case of the Thracians shows, would have followed any wholesale attempt to remove the newly organized regiments to distant provinces.[209] Lastly, the men would be fighting on ground which they knew against an enemy with whose methods of fighting they would already be acquainted. On the other hand, there was of course the obvious danger that in a border war which assumed the character of a national struggle the local auxilia might desert to their own countrymen and use the training which they had acquired in the Roman service to increase the strength of the hostile resistance. As a set-off to this danger the Romans reckoned with some justice that tribal enmity was usually stronger than national feeling, and in fact there were many tribal chiefs like Flavus, the brother of Arminius, who were well content with the rewards and distinctions which recompensed their fidelity.[210] Events, however, made it clear that this confidence was misplaced. A time was to come when the border tribes would identify themselves readily with the cause of imperial defence, but the influences which were to bring about this result were often slow in their operation, and the first century saw on almost every frontier a more or less serious outbreak of national feeling, in which the auxilia often participated. Yet even the most serious of these revolts, that of Civilis in 69, showed how the new leaven was working. The political conceptions of the mutineers were borrowed from their conquerors, not from their ancestors, and in the darkest hour of the revolt a Gallic cavalry regiment, the Ala Picentiana, was the first to return to its fidelity.[211]