At least not one that matters.
Iran and Turkey back opposite sides in the Syria conflict, but the two powers are united in support for UN envoy Lakhdar Brahimi's proposal for a cease-fire later this month.
The United Nations' envoy to Syria, Lakhdar Brahimi, visited Beirut today touting a fresh cease-fire for Syria. Damascus said it could support the plan, but said rebel disunity is a key obstacle.
A week after raising Russian ire by grounding a plane traveling from Russia to Syria, Turkey grounded an Armenian airliner – this time in a routine check arranged in a recently inked agreement.
The details of the Turkish grounding of a Syrian passenger plane earlier this week remain murky, but that hasn't stopped Turkey and Syria from trading accusations.
Turkey, already on the brink of a conflict with Syria, may now be facing tensions with Moscow after grounding a flight from Russia on suspicion that it was carrying weapons for the Syrian regime
Several Syrian mortars landed in Turkey today. The two countries have exchanged fire for the past week, though Syria says it does not want a military confrontation.
While the US and other Western nations resist being drawn into the fighting in Syria, Turkey is feeling the direct effects of bloodshed and refugees, putting pressure on Ankara to act.
After Syria shelled a Turkish town yesterday and killed five civilians, Turkey returned fire and went to NATO. However, experts say Turkey's moves are more about deterrence.
An effort by Egypt, Saudi Arabia, Turkey, and Iran to present a solution for Syria seems to be collapsing because of lack of buy-in, despite strong national interests in ending the upheaval.
Fierce fighting in Aleppo left a UNESCO World Heritage Site in tatters as world leaders left the UN General Assembly meeting no closer to a resolution for the 19-month conflict.
The Free Syrian Army launched the offensive yesterday afternoon, opening up multiple fronts against the government throughout Aleppo in a bid to end a two-month stalemate.