The book examines the armed conflict in Syria on the following aspects: Natural, geographical conditions for the conduct of hostilities in the region. Armed forces of Syria and other countries of the Middle East. Anti-Syrian conspiracy and creation of opposition. Origins of IS emergence and purpose. IS funding sources. Possibilities of transferring IS hostilities to Europe, Russia, and the USA. Chemical weapons in Syria and their destruction. Strategy and tactics of the war in Syria. Regrouping of the Russian Aerospace Forces and Navy. Actions of the Aerospace Forces, the Russian fleet, air defense and electronic warfare groups in Syria. Effects of the war in Syria on the Middle East. Destabilization of the countries of the South Caucasus by IS agents. The emergence of IS in Central Asia and the position of Moscow. Strategic lessons and conclusions of the Syrian war.