One feature more of the old village communities deserves a special mention. It is the gradual extension of the circle of men embraced by the feelings of solidarity. Not only the tribes federated into stems, but the stems as well, even though of different origin, joined together in confederations. Some unions were so close that, for instance, the Vandals, after part of their confederation had left for the Rhine, and thence went over to Spain and Africa, respected for forty consecutive years the landmarks and the abandoned villages of their confederates, and did not take possession of them until they had ascertained through envoys that their confederates did not intend to return. With other barbarians, the soil was cultivated by one part of the stem, while the other part fought on or beyond the frontiers of the common territory. As to the leagues between several stems, they were quite habitual. The Sicambers united with the Cherusques and the Sueves, the Quades with the Sarmates; the Sarmates with the Alans, the Carpes, and the Huns. Later on, we also see the conception of nations gradually developing in Europe, long before anything like a State had grown in any part of the continent occupied by the barbarians. These nations--for it is impossible to refuse the name of a nation to the Merovingian France, or to the Russia of the eleventh and twelfth century--were nevertheless kept together by nothing else but a community of language, and a tacit agreement of the small republics to take their dukes from none but one special family. Wars were certainly unavoidable; migration means war; but Sir Henry Maine has already fully proved in his remarkable study of the tribal origin of International Law, that "Man has never been so ferocious or so stupid as to submit to such an evil as war without some kind of effort to prevent it," and he has shown how exceedingly great is "the number of ancient institutions which bear the marks of a design to stand in the way of war, or to provide an alternative to it."(29) In reality, man is so far from the warlike being he is supposed to be, that when the barbarians had once settled they so rapidly lost the very habits of warfare that very soon they were compelled to keep special dukes followed by special scholae or bands of warriors, in order to protect them from possible intruders. They preferred peaceful toil to war, the very peacefulness of man being the cause of the specialization of the warrior's trade, which specialization resulted later on in serfdom and in all the wars of the "States period" of human history.