The Caliphate Project, Made in America. 
Declassified U.S. Government Documents Confirm the US Supported the Creation of ISIS


“… there is the possibility of establishing a declared or undeclared Salafist Principality in eastern Syria (Hasaka and Der Zor), and this is exactly what the supporting powers to the opposition want, in order to isolate the Syrian regime …. ” (Washington Blog, see below)

https://www.globalresearch.ca/newly-declassified-u-s-government-documents-the-west-supported-the-creation-of-isis/5451640