Victory of the Russian-Syrian-Iranian coalition is a defeat for the West. The army of the IS was always fighting in the side of the West. The US assisted the terror state with weapon supplies and education.
Recurring disinformation https://euvsdisinfo.eu/disinformation-cases/?text=ISIS&disinfo_issue=&disinfo_keywords%5B%5D=77105&date=, no evidence given. It is self-evident nonsense to state that IS fights on the side of the West.