Syria's President Bashar al-Assad said on Monday that the USA -led missile strike on Syria will not succeed in stopping the Syrian war on the terrorist groups in Syria, according to the state news agency SANA.
"One thing needs to be clear: If someone shoots at our planes, we will destroy them".
According to him, Syrian President Bashar al-Assad requested the system before the civil war broke out in 2011 and the sale was postponed because of Israel's concerns.
However, top US Defense and State Department officials reacted by adopting a totally different stance, arguing that the US should not leave anytime soon as the "mission is not over".
"Russian systems are there (in Syria) and are not being used against us, and if the Syrian systems act against us, we will destroy them", said Lieberman.
"The US pledged that their only aim was to repel terrorists from Syria, to defeat" the Daesh terror group, Lavrov told reporters in Beijing on Tuesday.More news: Mexico Outraged After Murder of Three Film Students
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The us leader noted that the USA has done nearly all the work against IG in Syria and Iraq.
Russian Foreign Minister Sergei Lavrov said earlier this month that no decision had yet been taken on the S-300 missiles.
The minister added that Israel did not interfere in Syria's internal affairs. The country conducted the last attack on April 9, when Israeli F-15 fighter aircraft fired missiles at the Syrian airbase in Homs after it was reported that an Iranian air defence system had been delivered there.
Israel repeatedly warns that it will not allow its arch-foe Iran to entrench itself militarily in the region where it reportedly has special forces and drones, nor will it allow the passage of weapons to the Iranian-proxy Hezbollah operating in southern Lebanon and Syria. The other possibility is the available systems may be retrieved from the Defense Ministry's reserves.
Late a year ago, Chief of the General Staff of the Russian Armed Forces Valery Gerasimov said satellite and other surveillance data indicated that terrorist squads were stationed in the Tanf base, and "effectively training there".
Earlier, the daily Kommersant quoted its own sources as saying that Russian Federation in the near future might start the delivery of S-300 Favorit air defense systems to Syria.