The terrorist group "Islamic State" took over the air defense system.

According to unofficial data received by Avia.pro news agency, the radical Islamists "ISIL" managed to seize the Kvadrat air-defense complex, which, according to some sources, was seized from the Syrian army.

Availability and use of anti-aircraft complex can greatly complicate the actions of the Military Space Forces of the Russian Federation on the territory of Syria, however, as experts believe, even if the information is really in line with current data management SAM "Square" required professional knowledge and experience to the also, it is possible that the information is nothing more than an attempt to get Russia to suspend operations in Syria.