feudal_clan_tribal_conquest_constraints

feudal_clan_tribal_conquest_constraints = {
	OR = {
		AND = {
			tier = tier_county
			title_province = {
				OR = {
					has_holding_type = tribal_holding
					has_holding_type = nomad_holding
					has_holding_type = herder_holding
				}
			}
		}
		AND = {
			tier > tier_county
			any_in_de_jure_hierarchy = {
				tier = tier_county
				title_province = {
					OR = {
						has_holding_type = tribal_holding
						has_holding_type = nomad_holding
						has_holding_type = herder_holding
					}
				}
			}
		}
	}
	scope:attacker = {
		NOR = {
			government_has_flag = government_is_tribal
			government_has_flag = government_is_nomadic
		}
		short_term_gold < 200
		OR = {
			AND = {
				government_has_mechanic = administrative
				short_term_gold < 700
				this != top_liege
			}
			any_sub_realm_county = {
				title_province = {
					OR = {
						has_holding_type = tribal_holding
						has_holding_type = nomad_holding
						has_holding_type = herder_holding
					}
				}
			}
		}
	}
}

As written in game/common/scripted_triggers/00_war_and_peace_triggers.txt.