It is open secret that Daesh was directly a creation of the CIA, to use a proxy ground army to overthrow Syria president Assad. On a larger picture Daesh is a consequence of U.S. invasion of Iraq, an act of high crime. This is why Daesh was allowed to linger for so many years. Until it nearly was at the doorstep of Damascus due to heavy U.S. air support. This was when Assad asked Russia and Iran to come in and help. 

Today Daesh is de facto destroyed in Syria, leadership killed. This is entirely the successful work of the Syrian coalition of Russia and Iran. The Pentagon tried to muck it up on the terrorist side but failed. Over in northern Iraq Daesh has taken over the region around Mosul. A year ago Iraq started a campaign to kill Daesh there under U.S. military leadership. It failed after 9 months. Iraq then proceeded to do it themselves and won Mosul in 3 months.  

Syria future now in its coalition hand. China will proceed to do reconstruction to become Sill Road 2 hub &terminal.