https://www.israelhayom.com/2019/07/01/russia-completes-deployment-of-s-300-missile-defenses-in-northern-syria/
Until now, only three of Syria’s four surface-to-air missile launchers were fully erected.
Russia has completed the deployment of its S-300 air defense system in Masyaf in northwestern Syria, not far from the cities of Homs and Hama, both of which have been targeted by airstrikes attributed to Israel.
An image published Sunday by ImageSat International shows four S-300 missile batteries alongside two advanced radar systems designed to be used in conjunction with anti-aircraft weaponry.
On Sunday, the IDF announced that new satellite imagery revealed Syria’s S-300 air defense system was fully operational.
An Israeli satellite imagery analysis company said that until now, only three of Syria’s four surface-to-air missile launchers had been seen fully erected.
In 2017, airstrikes attributed to Israel targeted a Syrian weapons factory in the city Masyaf that was believed to have been attached to a Syrian research center that was developing precision surface-to-surface missiles. The center was believed to be developing chemical weapons for the regime of Syrian President Bashar Assad.