Argonia in the Next Great War?

[theEpicShadowscale ●]

Lets say that a few years after TES Skyim, the Thalmor and their allies/vassals decide to once again attack the Cyrod Empire.
The Civil War questline can go either way so pleez say which faction wins or do both in one.

The Argonians are pretty isolated from the world besides the war with the Dunmer, where they basically clapped everyone's cheeks besides Redoran, but in all honesty the Argonians still have the more liveable parts so it wasn't that much of a loss.

So in this hypothetical war scenario, lets say an unknown force attacks some Argonian settlements. The An-Xiheel government has no idea who it is and both sides claim it was the other.

What side does Argonia join, why, and what would be the outcome?

Also if you can please include how each faction is affected