Nomadism, way of life of peoples who do not live continually in the same place but move cyclically or periodically. It is distinguished from migration, which is noncyclic and involves a total change of habitat. A nomadic society is a society where a nomad without fixed habitation which regularly moves to and from the same areas. Such groups include hunter-gatherers, pastoral nomads, and tinkers or trader nomads.
It would be "industrialization," that was a significant factor in both the german wars for unification and United States' Civil War, since Industrialization led to an irreconcilable economic split between two more major segments of each area.
