I see you, guys, entirely missed the brief (but bloody and potentially very dangerous) Russo-Turkish war of February-March 2020. And since everything is already over (so far), I'll describe it in brief:
- December 2019 - Syrian army began the offensive in Idlib to retake control over strategic M5 highway from Damascus to Aleppo.
- 28 January 2020 - Syrian army liberated Maarrat-an-Numan - the first key town on the M5 highway.
- 2 February 2020 - Syrian army liberated Saraqib - the second key town on the M5 highway.
- 11 February 2020 - Syrian army liberated Al-Rashidin 4 district and thus fully regained control over M5.
"Rebels" in Idlib were beaten and demoralised... and that's when masks were dropped and Turkey openly entered the game.
- 27 February 2020 - pro-Turkish militants, with Turkish artillery support, recaptured Saraqib. The following days were nightmare: Syrian army couldn't resist Turkish tactics (drones + artillery). The successful Syrian (officially) airstike of 28 February (destroyed command center with above 30 Turkish corpses) was, perhaps, the last warning to stop the advancing Turks. If so, the warning didn't worked.
- 2 March - With Russian air support, Syrian army managed to turn the tide and liberated Saraqib again. Turkish "blitzkrieg" clearly failed.
- 5 March - Erdogan arrived to Moscow. In the Kremlin hall, decorated with statuary and paintings depicting the historic Russian victories over Turkey, he signed a cease fire and thus de-facto recognized the Syrian territorial gains in Idlib. So ended this brief conflict. Officially, Turkey "had no problems with Russia" and fought against "Assad regime" only, as well as Russia fought against "terrorists". But, for some reason, it was exactly Russia and Turkey who signed a cease fire... such is the world we live in.
A picture that's worth 1000 words. Negotiations in Kremlin:
