Russia ready to strike states endangering its Syria forces: report
Vladimir Putin told Bashar al-Assad during their meeting in Moscow that Russia was prepared to strike any country that provides man-portable air-defense systems to Syrian rebels, according to a Kuwaiti daily closely following Moscows military intervention on behalf of the Syrian regime.
Russia used cruise missiles [against rebels] to confirm to all players on the ground in Syria that [Moscow] will target everyone who supplies extremists with missiles that affect Russian planes, Al-Rai quoted Putin as saying during his Tuesday sit-down with Assad.
A close confidante of Assadwho spoke on condition of anonymityalso told Al-Rai that Putin had emphasised his readiness to retaliate against anyone threatening his countrys forces in Syria.
Every state that supports the militants in a way that endangers Russian forces will be a legitimate target for us, the Russian president allegedly said.
https://now.mmedia.me/lb/en/NewsReports/566107-russia-ready-to-strike-states-endangering-its-syria-forces-report
Can't get more clear that that.