It started under Bush. The Wikileaks documents said the USAID (CIA) thought we could exploit sunni radicalism to bring down Assad. Obama inherited that program and in Syria we stitched sides in the War on Terror and started supporting Al Qeida with the Timber Sycamore program.
This effort to remove Assad is a 20 year CIA effort. It included sickening things like the fake gas attack, direct refusal of trump’s orders, destroying Europe with 2016 migrant wave, and creating ISIS.
A very shameful episode in our history.
Obama’s foreign policy was a catalogue of errors. Libya and now Syria a total mess

Thanks for the history lesson.
Please keep posting and pinging an old guy/me!
And also includes what happened in Benghazi, and using it as a hub to divert weapons to Syrian rebels, who would then give them to ISIS.