The U.S. and current events in Syria is a redo of the U.S. and events in Afghanistan circa 1980s; a U.S. regime change agenda married together with local Islamist agendas, engendering a growth of Islamist terrorists and terrorist organizations, ending in the establishment of an Islamist regime.
The Soviet Union created those conditions in Afghanistan via its invasion and occupation. Good riddance to the thousands of Red Army thugs sent by our enemy to that hellhole.