But while the sense of mutual relationship was thus vividly awakened among the Celtic tribes, the nation was still precluded from attaining a basis of political centralization such as Italy found in the Roman burgesses, and the Hellenes and Germans in the Macedonian and Frank kings. The Celtic priesthood and likewise the nobility--although both in a certain sense represented and combined the nation--were yet, on the one hand, incapable of uniting it in consequence of their particular class-interests, and, on the other hand, sufficiently powerful to allow no king and no canton to accomplish the work of union. Attempts at this work were not wanting; they followed, as the cantonal constitution suggested, the system of hegemony. A powerful canton induced a weaker to become subordinate, on such a footing that the leading canton acted for the other as well as for itself in its external relations and stipulated for it in state-treaties, while the dependent canton bound itself to render military service and sometimes also to pay a tribute. In this way a series of separate leagues arose; but there was no leading canton for all Gaul--no tie, however loose, combining the nation as a whole. The Belgic League The Maritime Cantons The Leagues of Central Gaul It has been already mentioned(20) that the Romans at the commencement of their Transalpine conquests found in the north a Britanno-Belgic league under the leadership of the Suessiones, and in central and southern Gaul the confederation of the Arverni, with which latter the Haedui, although having a weaker body of clients, carried on a rivalry. In Caesar's time we find the Belgae in north-eastern Gaul between the Seine and the Rhine still forming such an association, which, however, apparently no longer extends to Britain; by their side there appears, in the modern Normandy and Brittany, the league of the Aremorican or the maritime cantons: in central or proper Gaul two parties as formerly contended for the hegemony, the one headed by the Haedui, the other by the Sequani after the Arvernians weakened by the wars with Rome had retired. These different confederacies subsisted independently side by side; the leading states of central Gaul appear never to have extended their clientship to the north-east nor, seriously, perhaps even to the north-west of Gaul. Character of Those Leagues