This is coolbert:
C^3 = Command, control. communications.
Again belatedly so from that latest edition of the DEBKAfile news letter:
"Syria's S-300s will be integrated in Russia's national nuclear C^3 command and control system"
"When Russian Defense Minister Sergei Shoigu said on Oct. 2 that the 'unified' S-300 air defense systems in Syria will be installed in Syria by Oct. 20, he meant its integration in the Russian homeland system. That is the real import of Moscow's response to the downing of its Il-20 spy plane on Sept. 17 . . . Putin seized on the disaster to establish in Syria an advanced air defense weapons system linked not only to the Russian Khmeimim Air Base in Latakia, but integrated in Russia's own C^3 command, control and communications system against nuclear attack."
During the era of the Cold War Soviet air defense referred to as PVO Strany. Air Defense of the Homeland. That combined force of surface-air missiles, manned interceptors, radars and anti-aircraft -artillery.
PVO now gone since the time of having merged with the Russian Air Force.
Syria and Russian air defense now a combined and unified entity with robustness that cannot be denied. A regional threat beyond mere borders!
Unprecedented and ominous and obviously of concern to the Israeli primarily so?