join_war_interaction = {
	category = interaction_category_diplomacy
	interface = interfere_in_war
	special_interaction = interfere_in_war_interaction
	popup_on_receive = yes
	desc = join_war_interaction_desc
	icon = change_allegiance

	greeting = positive
	notification_text = join_war_interaction_notification

	is_shown = {
		scope:recipient = {
			is_at_war = yes
			NOR = {
				this = scope:actor
				is_at_war_with = scope:actor
			}
		}
	}

	is_valid_showing_failures_only = {

		# recipient is not in (any) war against your liege(s)
		trigger_if = {
			limit = { exists = scope:actor.liege }
			custom_description = {
				text = join_war_interaction_recipient_warring_with_my_liege
				subject = scope:recipient
				scope:actor = {
					NOT = {
						any_liege_or_above = {
							is_at_war_with = scope:recipient
						}
					}
				}
			}
		}

		# recipient is ally or defending against a holy war
		trigger_if = {
			limit = {
				scope:actor = {
					NOT = { target_is_liege_or_above = scope:recipient }
				}
			}
			trigger_if = {
				limit = {
					scope:recipient = {
						any_character_war = {
							OR = {
								#Must be either the same faith as the character being holy warred...
								scope:recipient.faith = scope:actor.faith
								#... Or, same religion, *and* you couldn't holy war them yourself.
								AND = {
									scope:recipient.faith.religion = scope:actor.faith.religion
									scope:actor.faith = {
										faith_hostility_level = {
											target = scope:recipient.faith
											value < religious_cb_enabled_hostility_level
										}
									}
								}
							}
							any_war_defender = { this = scope:recipient }
						}
					}
				}
				# Deliberately blank; we've passed the trigger and making a desc out of this doesn't make sense
			}
		}
		# recipient is liege
		trigger_else = {
			custom_description = {
				text = join_war_interaction_recipient_not_liege
				subject = scope:recipient
				scope:actor = {
					target_is_liege_or_above = scope:recipient
				}
			}
		}
	}
	
	can_be_picked = {
		exists = scope:target
		scope:target = {

			# recipient is war leader
			is_war_leader = scope:recipient

			# If not holy war, special exception for liege trying to put down his vassal's peasant revolt.	
			trigger_if = {
				limit = {
					is_religious_war = no
					scope:actor = { target_is_vassal_or_below = scope:recipient }
					primary_defender = scope:recipient
					primary_attacker = {
						is_leading_faction_type = peasant_faction
					}
				}
				always = yes
			}

			# making the default behavior explicit if no other trigger_(else_)ifs are valid
			trigger_else = {
				always = yes
			}
		}

		joiner_not_already_in_another_war_with_any_target_war_participants_trigger = {
			WARRIOR = scope:recipient
			JOINER = scope:actor
		}
	}

	on_accept = {
		scope:target = {
			hidden_effect = {
				set_called_to = scope:actor
			}
			if = {
				limit = {
					is_attacker = scope:recipient
				}
				add_attacker = scope:actor
			}
			else = {
				add_defender = scope:actor
			}
		}
		scope:actor = {
			stress_impact = {
				craven = medium_stress_impact_gain
				shy = minor_stress_impact_gain
			}
		}
		scope:recipient = {
			if = {
				limit = {
					is_ai = yes
				}
				progress_towards_friend_effect = {
					CHARACTER = scope:actor
					OPINION = no
				}
			}
			else = {
				hidden_effect = { #To nudge friendship
					if = {
						limit = {
							NOR = {
								has_relation_friend = scope:actor
								has_relation_potential_friend = scope:actor
							}
						}
						set_relation_potential_friend = scope:actor
					}
				}
			}
		}
	}

	on_decline = {
		scope:actor = {
			trigger_event = char_interaction.0236
		}
	}

	auto_accept = yes

	ai_accept = {
		base = 100 # everyone wants help
	}

	ai_will_do = {
		base = -1000 # only players can join all the wars
	}

}