can_use_viking_invasion_cbs_trigger

can_use_viking_invasion_cbs_trigger = {
	trigger_if = { # Conquerors go for neighbors, no need to go overseas
		limit = {
			has_trait = conqueror
			is_ai = yes
		}
		always = no
	}
	trigger_else_if = {
		limit = {
			has_fp1_dlc_trigger = yes
		}
		can_use_viking_invasion_cbs_dlc_trigger = yes
		OR = {
			#If the host has fp1, then we want Scandis to beat each other up and export the losers overseas, not form huge overseas empires themselves.
			capital_province = {
				NOT = { geographical_region = world_europe_north }
			}
			#Players are under no restrictions.
			is_ai = no
		}
	}
	trigger_else = {
		has_fp1_dlc_trigger = no
		can_use_viking_invasion_cbs_dlc_trigger = yes
	}
}

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