add_truce_attacker_victory_effect

add_truce_attacker_victory_effect = {
	scope:attacker = { # Vassal Stance opinion effect
		if = {
			limit = {
				any_vassal = {
					vassal_stance = glory_hound
				}
			}
			custom_tooltip = glory_hound_approves_war_victory
			hidden_effect = {
				every_vassal = {
					vassal_stance = glory_hound
					add_opinion = {
						target = scope:attacker
						modifier = glory_hound_approves_war_victory_opinion
					}
				}
			}
		}
		if = {
			limit = {
				any_vassal = {
					vassal_stance = zealot
				}
				scope:defender = {
					faith = scope:attacker.faith
					government_has_flag = government_is_theocracy
				}
			}
			custom_tooltip = zealot_disapproves_war_victory
			hidden_effect = {
				every_vassal = {
					vassal_stance = zealot
					add_opinion = {
						target = scope:attacker
						modifier = zealot_disapproves_war_victory_opinion
					}
				}
			}
		}
		if = {
			limit = {
				government_has_flag = government_is_clan
				house ?= { has_house_unity_stage = antagonistic }
				any_vassal = {
					house ?= scope:attacker.house
				}
			}
			custom_tooltip = antagonistic_house_approves_war_victory
			hidden_effect = {
				every_vassal = {
					limit = {
						house ?= scope:attacker.house
					}
					add_opinion = {
						target = scope:attacker
						modifier = antagonistic_house_approves_war_victory_opinion
					}
				}
			}
		}
	}
	scope:defender ?= { # Vassal Stance opinion effect
		if = {
			limit = {
				any_vassal = {
					vassal_stance = glory_hound
				}
			}
			custom_tooltip = glory_hound_disapproves_war_defeat_defender
			hidden_effect = {
				every_vassal = {
					vassal_stance = glory_hound
					add_opinion = {
						target = scope:defender
						modifier = glory_hound_disapproves_war_defeat_opinion
					}
				}
			}
		}
		if = {
			limit = {
				any_vassal = {
					vassal_stance = zealot
				}
				scope:attacker = {
					faith = scope:defender.faith
					government_has_flag = government_is_theocracy
				}
			}
			custom_tooltip = zealot_approves_war_victory_defender
			hidden_effect = {
				every_vassal = {
					vassal_stance = zealot
					add_opinion = {
						target = scope:defender
						modifier = zealot_approves_war_victory_defender_opinion
					}
				}
			}
		}
		if = {
			limit = {
				government_has_flag = government_is_clan
				house ?= { has_house_unity_stage = antagonistic }
				any_vassal = {
					house ?= scope:defender.house
				}
			}
			custom_tooltip = antagonistic_house_disapproves_war_defeat_defender
			hidden_effect = {
				every_vassal = {
					limit = {
						house ?= scope:defender.house
					}
					add_opinion = {
						target = scope:defender
						modifier = antagonistic_house_disapproves_war_defeat_opinion
					}
				}

As written in game/common/scripted_effects/00_war_effects.txt.