The less the Celts, left to themselves, were a match for the Germans, the more reason had the Romans carefully to watch over the complications in which the two nations might be involved. Although the movements thence arising had not up to the present time directly affected them, they and their most important interests were yet concerned in the issue of those movements. As may readily be conceived, the internal demeanour of the Celtic nation had become speedily and permanently influenced by its outward relations. As in Greece the Lacedaemonian party combined with Persia against the Athenians, so the Romans from their first appearance beyond the Alps had found a support against the Arverni, who were then the ruling power among the southern Celts, in their rivals for the hegemony, the Haedui: and with the aid of these new "brothers of the Roman nation" they had not merely reduced to subjection the Allobroges and a great portion of the indirect territory of the Arverni, but had also, in the Gaul that remained free, occasioned by their influence the transference of the hegemony from the Arverni to these Haedui. But while the Greeks were threatened with danger to their nationality only from one side, the Celts found themselves hard pressed simultaneously by two national foes; and it was natural that they should seek from the one protection against the other, and that, if the one Celtic party attached itself to the Romans, their opponents should on the contrary form alliance with the Germans. This course was most natural for the Belgae, who were brought by neighbourhood and manifold intermixture into closer relation to the Germans who had crossed the Rhine, and moreover, with their less-developed culture, probably felt themselves at least as much akin to the Suebian of alien race as to their cultivated Allobrogian or Helvetic countryman. But the southern Celts also, among whom now as already mentioned, the considerable canton of the Sequani (about Besangon) stood at the head of the party hostile to the Romans, had every reason at this very time to call in the Germans against the Romans who immediately threatened them; the remiss government of the senate and the signs of the revolution preparing in Rome, which had not remained unknown to the Celts, made this very moment seem suitable for ridding themselves of the Roman influence and primarily for humbling the Roman clients, the Haedui. A rupture had taken place between the two cantons respecting the tolls on the Saone, which separated the territory of the Haedui from that of the Sequani, and about the year 683 the German prince Ariovistus with some 15,000 armed men had crossed the Rhine as condottiere of the Sequani. Ariovistus on the Middle Rhine