Wing Commander CIC

Hello everyone, is there any official information indicating the clans involed in the five-sided Kilrathi civil war? How do the clans make the five factions?

I'm a new fan, and I've read limited materials. I flipped through threads recently, but did not find the answer.

And... is there a positive description of this civil war? Also, did the war against Nephilim happen during the civil war?

Thank you very much!