The Wall Street Journal is reporting that Israel carried out an airstrike on Syria’s T4 airbase last week in order to keep a newly-arrive Iranian Tor air defense missile system from being activated.
By Vitaly V. Kuzmin (http://vitalykuzmin.net/?q=node/561) [CC BY-SA 4.0 or CC BY-SA 4.0], via Wikimedia Commons
The plan on the attack was shared with the Americans way in advance, two people with knowledge told the news outlet.