The only reason America didnt completely roll the VC and the NVA was "rules of engagement" There was plenty of troops and supplies to do the job but the chronics at home and in the joint chiefs didnt want to engage thoroughly.
Guerrella war can be sucessfully fought. In Rhodesia without the boycott of the world it would still be there. Tibet is still run by china. The Ukraine after WW2 was pacified by the Russians by 1955. It takes all out effort and no morals but it can be done.
thanx,
bill