confederation_foe_sub_trigger

confederation_foe_sub_trigger = {
	NOT = { is_allied_to = $CHARACTER$ }
	OR = {
		has_trait = conqueror
		has_trait = greatest_of_khans
		highest_held_title_tier >= tier_kingdom
		custom_tooltip = {
			text = call_for_confederation_decision_gurkhan
			is_gurkhan = yes
		}
		custom_tooltip = {
			text = considers_faith_evil_tt
			faith = {
				faith_hostility_level = {
					target = $CHARACTER$.faith
					value >= faith_evil_level
				}
			}
		}
	}
	trigger_if = {
		limit = {
			max_military_strength > 0
			$CHARACTER$.max_military_strength > 0
		}
		custom_tooltip = {
			text = superior_max_military_strength_tt
			confederation_worthy_foe_strength_ratio_value <= 0.5
		}
	}
}

As written in game/common/scripted_triggers/mpo_scripted_triggers.txt.