Russian, Western sources say Pantsir-S1 on way to Syria
Western officials and a Russian source said a Pantsir-S1 air defense system is on the way to Syria.
By Leonidl (Own work) [CC BY-SA 3.0 or GFDL], via Wikimedia Commons
The entire system has yet to arrive but U.S. officials believe some control system components have been deployed at an airfield near Latakia.
Source: Russian, Western sources say Pantsir-S1 on way to Syria