On October 7, the lower house of Russia’s parliament ratified an agreement with Syria that authorizes the indefinite deployment of a Russian air group at the Khmeimim Air Base in Syria’s province of Latakia. The agreement was signed in Damascus on August 26, 2015, and was submitted by Moscow for ratification in the beginning of August, 2016.
Russia will use the Khmeimim Air Base ‘free-of-charge’ and will carry out supplies to the base without customs or any other duties.
The Russian military began its military operations against terrorist groups in Syria on September 30, 2015, at the request of Syrian government.
This is the best move Syria could ever make.