Grand Cathay AI factions refuse to Join War against various Chaos factions that are attacking the Cathay Great Wall.

This happens even for the "Imperial Wardens" minor AI faction of Grand Cathay whose entire purpose is to guard the Great Wall and defend its three Gates.


This means that even as Defensive Alliance allies the minor AI cathay factions will not be able to join Gate battles or sieges, because they are not in War with Chaos factions that the player entered war with before the Defensive alliance was formed.


In my opinion all Cathay AI factions, especially the minor AI, should ALWAYS accept Join War against all Chaos related factions (chaos dwarves, chaos warriors, norsca, skaven...).

Otherwise they literally let the Chaos destroy the great Gates and run rampant through the entire Grand Cathay while they sleep in their cities.