Casus belli · Civil wars and factions

Independence Faction

The war is called “Independence War”

Independence Faction is a casus belli in Crusader Kings III (civil wars and factions). If the attacker wins: All rebellious vassals of the defender become independent. If the defender wins: The Independence Faction is disbanded, and its members cannot join factions for … years. The war goal is worth 100% war score. Patch 1.20.0.3, from game/common/casus_belli_types/00_civil_war.txt.

Quick answers (2)

What do you get for winning a Independence Faction war in CK3?: All rebellious vassals of the defender become independent (patch 1.20.0.3).
What happens on a white peace?: The Independence Faction is disbanded, and its members cannot join factions for … years.

How the war ends

Attacker wins

All rebellious vassals of the defender become independent.

White peace

The Independence Faction is disbanded, and its members cannot join factions for … years.

Defender wins

The Independence Faction is disbanded, and its members cannot join factions for … years.

If the war becomes invalid

The … has ended: it was no longer valid to continue.

Who can declare it

The game shows no text of its own for these conditions; the script is below.

Every civil wars and factions war (the group's allowed_for_character) (1 line of game script)

herders_and_tributary_constraints = yes

As written in game/common/casus_belli_groups/00_casus_belli_groups.txt.

Attacker (allowed_for_character) (6 lines of game script)

scope:attacker = {
	is_leading_faction_type = independence_faction
	NOT = {
		government_has_flag = government_is_landless_adventurer
	}
}

As written in game/common/casus_belli_types/00_civil_war.txt.

Defender (allowed_against_character) (3 lines of game script)

scope:attacker = {
	liege = scope:defender
}

As written in game/common/casus_belli_types/00_civil_war.txt.

Source: game/common/casus_belli_types/00_civil_war.txt and the English localisation, Crusader Kings III 1.20.0.3. “The attacker”, “the defender” stand where the game names the character; “…” marks other words it fills in during play.