Every war is planned to be fast and severe. What's not being thought of indepth is the support each side will get from China.Call me crazy but I don't think a civil war would be a war of attrition. I think it would be fast and severe. I don't see the rank and file military going along with orders from dudes in dresses.
They will help both sides and arm both sides no different then what we did in the 1980's with Iraq/Iran war.
I hope our civil war of the 1860's was enough. But with the removal of its history from the southern states, I think the consequence is "repeatable" and that's the plan.