However, nomads have standing armies in the form of horde troops, while other rulers who can afford them can have retinues. Under certain circumstances, tribal rulers can have event troops. While tribal rulers can raise their demesne levies, they call their direct tribal vassals into war as allies, instead of raising liege levies from them. However, if the tribal liege is a vassal to a non-tribal ruler, the tribal liege will receive liege taxes and levies from tribal vassals.