From Al Jazeera. Any opinions expressed are those of the authors, and do not necessarily reflect the views of Iran Business News.
Russia has used a base in Iran for the first time to launch air strikes in Syria.
Its long-range bombers conducted raids on ISIL and Jabhat Fateh Al-Sham strongholds from the Hamedan base in western Iran.
It poses new questions about the international support for Syrian President Bashar Al Assad.
Al Jazeera’s Rory Challands reports from Moscow