Most nations have adopted some form of feudal government in which leaders allocate portions of their domain to vassals in return for a share of the vassals' taxes and levies. The immediate ruler of a vassal is referred to as their liege. Feudalism represents a form of decentralization that streamlines governance but diminishes individual authority. Vassals, in turn, have the ability to further distribute lands to their own vassals, a practice known as subinfeudation. In exchange for the allegiance of their vassals, the liege ensures protection against external threats and otherise maintains peace within their borders, Each nation mints its own coins and all traders readily accept gold, silver, and copper coins.