Chaos Undivided - Crusade mechanics ?

[Caine-7]

Can Chaos Undivided call a crusade ?
I ask this cause they dont have a piety chart like the other chaos factions. ( Khorne--CH.Dwarfs etc...)
So I cant see how much piety Chaos Undivided has. It only says I dont have enough.

Does anybody know, is it possible ?

SO and if I (CU faction) cant call a crusade/Invasion - will it be called by it self somehow???

[WhiffOfGrapeshot]

Yes, they can. There's a few turns delay before one can be called, though, so there's a chance for both sides to build up some forces before attacking and crippling themselves.