Yep, good summary. However, you miss the Neocon involvement. Remember our bases in Syria - they were almost certainly arming the terrorists also, particularly with drones. Assad was stuck with yesterday’s military, so he never had a chance.
Another ‘success’ story for the Neocons, although, so far, it’s only thousands of Christians dead in Syria, unlike what is probably more than a million Christians dead in the war they started in Ukraine - which is the ‘success’ story that the Neocons will be telling their grandchildren about for generations.
Not old bases. Turkey is supplying the ISIS Jihadi’s.