Invade or flee? Perhaps they are fleeing Syria because of the real bombing that is finally targeting them.
No....ISIS was well under way In Afghanistan back in September 2014....and part of the reason Russia began serious bombing.....A band of former Taliban fighters, had united with the Afgahnistan Government previously, but then as ISIS began going into Afghanistan they changed sides claiming allegiance to the Islamic State and began fighting their former comrades for dominance.