According to the small arms survey, Syria has a 3.9% civilian gun ownership rate (guns per 100 capita). It is pretty clear these are not in the general population. I wonder what response ISIS would get, if the Syrian population had our 88% rate? https://en.wikipedia.org/wiki/Number_of_guns_per_capita_by_country I don't think we can fully appreciate how much pain and fear a population must experience to make the decision to leave it all behind, just to survive. If armed, the choices might be different.