There have been 470,000 casualties in Syria. For comparison, that’s more than the US suffered in WW2, and that loss was felt. It’s a colossal humanatarian disaster and very much a war.
https://www.hrw.org/world-report/2017/country-chapters/syria
russia didn't need to do to much due to all the efforts of the 4+ sides fighting each other.
The Turks (IMHO) are unseasoned forces are fighting battle that is against international laws, and is for a country run by a dictator. Both points that are huge factors against their success.
It will probably come down to air power, I wonder what the Kurds have in the way of surface to air missiles?
And while the Turkish have far more firepower and air power than Kurds, the terrain is extremely favourable for a defending force, particularly when it is as motivated and well-trained as the Kurdish fighters. A Turkish attack can become a debacle, or at militarily "best", a massacre of civilian population resulting in further alienating Turkey from civilization.
Don't misunderstand that I think this is a) a good idea, or b) ultimately going to work out the way Turkey wants it to work out.
I don't think the kurds will choose to live and die by Afrin.
Is it even "likely" that you can shoot down a jet with an manually operated anti aircraft gun? Sure it's "possible"
Does Turkey have guided bombs? And will they be re-supplied so that Turkish air force could use them at will?
but where do i begin. oil - yes europe want to reduce reliance on russian gas but there are a LOT of countries between qatar and europe.
Arab spring - did NOT start in syria. in syria the flames were fanned by all interested countries in the hopes that a bunch of autocratic dictators would be overthrown with no effort required. didn't work, total balls up, in every case the cure was worse than the problem.
Turkey - got involved for 3 reasons: 1) the shit-show was on their borders. 2) the more the kurds got involved the more turkey saw a need to reduce their power. 3) turkey now sees it self as a regional super-power and wants a show of force.
Russia - they inserted themselves into the mess and claim Syria under there sphere of influence. their troops get a bit of practice, they get an ally and a port in the Mediterranean.
Iran and Saudi - they have been having a proxy war in yemen and the US has re-affirmed it's support of the saudi (they would be crazy not to). they made a BIG flashy show about stopping terrorism. very next thing that happens they all turn on qatar.
'Russia won the war in both Ukraine and Syria, at same time' what is your sentence meant to imply? these weren't wars they were minor deployments of resources that wouldn't tax any reasonably large country.
stop spreading propaganda.