they got air support from israel during the attack on syria. the u.s. paid countries like jordan to give money to syrian government officials so they could step down and buy a nice home in europe instead of defending syria. the rest was done by isis ground forces that were funded directly by the u.s. and israel.  the general consensus in syria right now is that the plan is to divide the nation into an area for kurds, an area for turks, an area for israel and an area for the syrian people. this way israel won't be the only ethnic nation in the region.
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