You may not know that Syria isn't all about Russia! Russia! Russia!
For instance, the pro-regime change Syrian Network for Human Rights had something interesting to say today.

According to a report by the Syrian Network for Human Rights published on Wednesday, coalition strikes targeting mainly IS-held areas in eastern and northern Syria have killed 649 civilians since September 2014.

It's hard to seize the moral high ground against Russia when you have so much blood on your hands, so the news media will ignore this.
But this isn't what I wanted to talk about today. I wanted to talk about the Kurds and Turkey.

Turkey’s President Recep Tayyip Erdogan declared on Tuesday that his country would next attack the town of Manbij in Syrian Kurdistan (Rojava) after capturing the Islamic State-held city of al-Bab nearby.

Then, in an ominous tone, Erdogan called for some Neo-Ottoman Empire.

In a speech at his palace, Erdogan conjured up an image of Turkey constrained by foreign powers who "aim to make us forget our Ottoman and Selcuk history", when Turkey's forefathers held territory stretching across central Asia and the Middle East.
"From now on we will not wait for problems to come knocking on our door, we will not wait until the blade is against our bone and skin, we will not wait for terrorist organizations to come and attack us," he told hundreds of "muhtars", local administrators generally loyal to the government...
He often laments the concessions made by Turkish leaders after World War One, with the signing of the Treaty of Lausanne that brought modern Turkey into being in 1923. Pro-government media this week published maps depicting Ottoman borders encompassing an area including Mosul.

Erdogan is especially pissed about not having a leading role in the Mosul offensive. He's even playing a game of chicken with Baghdad.

Two weeks ago, Turkey's parliament voted to extend for a year the deployment of an estimated 2,000 troops across northern Iraq to combat "terrorist organisations".
Around 500 of these troops are currently stationed in the Bashiqa camp in northern Iraq, training local fighters for the battle to recapture Mosul.
Days before Iraqi troops and their local and international partners started their push to recapture Mosul, Iraq's Prime Minister Haider al-Abadi condemned Turkey's military presence in the country, and warned that Ankara risked "triggering a regional war"....
Mosul remained under Ottoman control for nearly 400 years, until its capture by Britain in 1918. The city served as the capital of one of the three provinces in Ottoman Iraq and was seen as an integral part of the empire.

In the more immediate future, the Syrian Kurds of the Afrin canton are in danger from Turkey's jihadist allies.

Turkish-backed Free Syrian Army (FSA) factions and Islamist forces have given the Kurdish YPG just 48 hours to leave Tal Rifaat or else face a war.
Tal Rifaat lays just 10km west of Marea and 40km north of Aleppo city.
The imperative town had a prewar population of around 20,000 war and was captured by Kurdish forces from the extremists of Liwa al-Fatah of the Islamic Front in February 2016.

Just in case there was any doubt about who's side Turkey was on, and what the consequences might be.

Local observers on Twitter reported that Russia launched airstrikes Oct. 19 against Free Syrian Army (FSA) positions in the city of Marea, Aleppo province, north of Sahba Dam. The FSA warned all civilians to leave Tal Rifaat on Oct. 18 and declared it a military zone. The area is primarily held by Kurdish People's Protection Units (YPG) based in Afrin, but the FSA wants to retake it, having lost the area amid the battle for the city of Aleppo. Turkish-backed units of the FSA have been embroiled in ongoing clashes with YPG fighters since Oct. 18 as each moves in on Islamic State positions in the vicinity. Turkey has stepped in with artillery support for the FSA, shelling YPG positions Oct. 19 in Hasajik, Hasieh, the Sahba Dam and Um Hosh. The FSA's recent advances have brought it within a few kilometers of loyalist lines.

Put simply, Russia is defending our Kurdish allies against an al-Qaeda-like group aligned with our NATO ally, Turkey.
So Turkey and Russia could end up shooting at each other over, with Russia defending the Kurds and Turkey defending our al-Qaeda enemies.