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

The war was prolonged for some years with varying success; on the whole the results were unfavourable to the Haedui.  Their leader Eporedorix at length called out their whole clients, and marched forth with an enormous superiority of force against the Germans.  These obstinately refused battle, and kept themselves under cover of morasses and forests.  It was not till the clans, weary of waiting, began to break up and disperse, that the Germans appeared in the open field, and then Ariovistus compelled a battle at Admagetobriga, in which the flower of the cavalry of the Haedui were left on the field.  The Haedui, forced by this defeat to conclude peace on the terms which the victor proposed, were obliged to renounce the hegemony, and to consent with their whole adherents to become clients of the Sequani; they had to bind themselves to pay tribute to the Sequani or rather to Ariovistus, and to furnish the children of their principal nobles as hostages; and lastly they had to swear that they would never demand back these hostages nor invoke the intervention of the Romans.