The launchers of Russian-made S-300 missile defense systems deployed to Syria have been erected, new satellite images released on Feb. 5 showed.
The Jerusalem Post: Russian-made S-300 missile defense system active in Syria
A Russian surface-to-air missile system S-300 PMU2 Favorit rolls during a rehearsal of the Victory Day Parade in Alabino, outside Moscow, on April 18, 2012.