I will say that it is absolutely NOT in the interests of this country for Assad of Syria to be overthrown by the Islamic-led rebels. They are ISIS.
We should be fighting them.
Why is Erdogan supporting ISIS, should be the question. How is THAT in Turkey’s national interest? Unless the Turks are looking at regaining their Ottoman Empire with a new name...
“Beware the cruel Turk!” was a slogan in the Middle Ages for a good reason.
The Turks have had long historic disputes with Syria and Assad .... the opposition to Assad is not all ISIS and in fact recently devolved to ISIS - ISIS is I believe the outcome of a lack of a coherent rational US/Western policy toward Syria and the vacuum that Obama’s policy created in Iraq. ISIS is neither a Turkish creation nor a Turkish ally nor does a radical theocratic Iraq serve Turkish interests in the long term
I believe Turkey is less “pro-ISIS” than anti-Syria (with Assad’s ties to shia Iran and Russia) and pro-Saudi Arabia
In fact, ISIS with its former Saddam regime Baathist leaders no doubt has revenge plans in store for Turkey as the region’s closest member of NATO/West, and they wont ever forget Turkey’s role in the US-led Coalition in 2 wars against Saddam
Turkey is triangulating its interests against those of Assad and his Iran/Shia (and Russian) allies, and given the lack of a viable US leadership they can trust and work with, probably sees working with Saudi Arabia as the best counter to Iran’s working with Syria, and Syria working with PKK terrorist against Turkey
Turkey is most immediately concerned about what is on its own border- Syria and the Kurds - than the central and southern parts of Iraq- and also the Black Sea and Russia