In response to Turkey’s downing of a Russian fighter jet on November 24, 2015, Russia deployed its most advanced surface-to-air missile system to Bassel al-Assad International Airport in Latakia Province, eastern Syria. The S-400 SAM system is capable of contesting most of the airspace over Syria, southern Turkey, northern Jordan, a significant portion of Israel, as well as all of Lebanon and Cyprus. This map shows the potential reach of the S-400 missiles stationed in Latakia which have an effective range of up to 250 miles (400km).
The Russian Ministry of Defense (MoD) discontinued the release of daily airstrike reports from October 28 – November 1 amidst multilateral talks on the Syrian Civil War held in Vienna on October 30 and continued reports of civilian casualties. Nevertheless, credible local sources continued to report airstrikes in Dera’a, Damascus, Homs, Hama, Idlib, and Aleppo from October 31 – November 1.