....How do I join a great holy war?

[Dahoota]

I'm playing as a the Zoroastrian emperor of the newly reformed Persian Empire. Within a year of reforming the priesthood the new high priest called great holy war for Syria. I can't find any way to join it myself.

Is this a bug, or am I stuck out of it because the high priest is a vassal?

 

[CVDE]

A better question is how and the hell did you make the persian empire with OP Nomads and over zealous musims??

 

[nanomage]

normally you have the diplomatic option to join whejn right-clicking on you religious head. It doesn't matter that he's your vassal, GHW are explicitly excluded from "can't join vassals' wars" rule.
If this doesn't work for your (offer to join wars grayed out or send grayed out), what does it say in the tooltip when you hover over the gray button

 

[Zooboss]

A better question is how and the hell did you make the persian empire with OP Nomads and over zealous musims??

The way I do it: start up a game as Uyghurs in Charlemagne. You're Manichean, a Zoroastrian Heresy. Make the Akhun Khan your Chaplain and send him to proselytize in Sibir. This will either result in him staying which will eventually remove attrition or in his capture in which case he has no heir and can't have children so you end up inheriting everything (and his lands are the majority of the Uyghur Khaganate). Repeat with the other vassal clan. Renounce your Heresy and embrace Zoroastrianism. If a clan rebels use tributaries to beat him up and then absorb his vlan. Split your clan to do a new Zoroastrian clan. Then expand as a nomad until you can invade the Abbasids for Persia. Or do what I did and Subjugate them.

 

[Bernard95]

I'm playing as a the Zoroastrian emperor of the newly reformed Persian Empire. Within a year of reforming the priesthood the new high priest called great holy war for Syria. I can't find any way to join it myself.

Is this a bug, or am I stuck out of it because the high priest is a vassal?

Is there not a big banner on the upper left hand corner of your screen? Something akin to the white banner with a red cross you get for a Catholic crusade, but in your case probably has the Zoroastrian symbol on it. Either that or I believe you just go to the High Priest and on his diplomacy menu you should see a "Join Great Holy War" or "Offer to Join War" button.

 

[Dahoota]

A better question is how and the hell did you make the persian empire with OP Nomads and over zealous musims??

I'm playing the Karen dynasty In the 867 start, they get 4k event troops. My strategy was to avoid using them to deter attackers and wait until the major Muslim powers were tied up in other wars before attacking with mercs so they don't support each other. I targeted the Saffarids first then moved on to the Abbasids.

The strategy of keeping my troop count high deterred the nomads too, though raiding hordes spawning on top of me constantly and cutting off the silk road got old fast.

normally you have the diplomatic option to join whejn right-clicking on you religious head. It doesn't matter that he's your vassal, GHW are explicitly excluded from "can't join vassals' wars" rule.
If this doesn't work for your (offer to join wars grayed out or send grayed out), what does it say in the tooltip when you hover over the gray button

I know the button you're talking about, it wasn't there at all. I'd screenshot but the war is already over - every single vassal I had joined and somehow won.

 

[Dahoota]

Is there not a big banner on the upper left hand corner of your screen? Something akin to the white banner with a red cross you get for a Catholic crusade, but in your case probably has the Zoroastrian symbol on it. Either that or I believe you just go to the High Priest and on his diplomacy menu you should see a "Join Great Holy War" or "Offer to Join War" button.

The banner was there, but no options where they normally are.

 

[Bernard95]

The banner was there, but no options where they normally are.

Most likely a bug then. I've seen that a lot of modders where saying the current patch broke a lot of event triggers. This is probably one of them.

 

[Dahoota]

I'll play again tonight and check back with screens. If it happens again it might be worth reporting as a bug.

 

[majorlupa]

Right click on religious head and 'join war' ? might work

 

[kakanien]

diplomatic window on the religious head

 

[Dahoota]

Dat necro.

Anyway, it might be worth adding that I figured out in a later game that you can't join a GHW/Crusade/Jihad if you have a truce with the target, which is what happened here.