Me naive, as you trying blow Russian smoke up my pert (a-hem) rear end; do you believe that Russians were not fighting in the Ukraine for years when Russia said they weren't, that the Crimea was just gagging to be annexed by Russia, and that Putin was only bombing ISIS targets in the first week as stated?
We KNOW Syria possessed shed loads of chemical weapons, as Assad offered them up under Russian supervision.
We KNOW Assad fired on unarmed civilians and has used every means to kill his own citizens by air or field gun, so if applying that recent Russian Spokesman quoting 'the duck test' on Jihadis - when there are as you say 30-40,000 ISIS combatants mainly in the West of Syria while Russia was bombing the East - Assad 'looks, walks, and quacks like a (psychotic) duck'.
“UN Says Syria May Have Used Chemical Weapons”
news.sky.com/story/1325488/un-says-syria-may-have-used-chemical-weapons
“The United Nations has said it believes the Syrian regime used chemical weapons in civilian areas eight times in April.”
"Reasonable grounds exist to believe that chemical agents, likely chlorine, were used on (northern Syrian villages) Kafr Zeita, al Tamana and Tal Minnis in eight incidents within a 10-day period in April," it said.”
"Witnesses saw helicopters drop barrel bombs and smelled a scent akin to domestic chlorine immediately following impact," it pointed out.”
“Victims, it said, had suffered "symptoms compatible with exposure to chemical agents, namely vomiting, eye and skin irritation, choking and other respiratory problems".