I have a bit of trouble defining a combined arms force of over 200K as an insurgent one. I think you fall into the trap of defining insurgency as anything Mao described. The Maoist approach was to use insurgency to prepare for conventional war.

I'll stick to my point that insurgency is a strategy, and a given protagonist may shift in and out of it. I think we befuddle ourselves when we try and define insurgency by its political objectives. We just can't transcend our obsession with the Cold War security environment.