I never said there was no resistance. I said that there were quite a few that didn't resist, because they knew they were better off as provinces of Rome, both financially and militarily. Egypt, Greece, Judea and Asia Minor are all examples. Yes, some did resist, as I agreed. The Gauls are a good example. Some fought to become Romans, or at least equal to Romans within the empire, so I wouldn't call that resistance. The Goths are a good example of this, as are the Vandals, who basically bought their way into Carthage nobility with the spoils from their crusade across North Africa to become Romans. There were also wars fought by Rome for glory or wealth that had nothing to do with trying to form a new province, like Cassius fighting the Parthians. I stand by my premise that most peoples of the region knew it was good to be Roman and therefore didn't resist when Rome made them a province. Of course, there were exceptions.
None of this has anything to do with the current situation in Iraq and whether it's win-able, though.