The S-300, capable of taking out aircraft and missiles, was set to be delivered within two weeks and Syrian officials have lauded the move.
Russian Federation says it had suspended the delivery of its S-300 missile defense system for years over concerns raised by Tel Aviv; however, the recent plane crash prompted the Kremlin to press ahead with its earlier plan to deliver the missile system to Syria within two weeks in a bid to boost the Arab country's air defense capabilities and take "adequate retaliatory measures".
The Israeli military said that Syria's indiscriminate air defence fire was the cause of the incident.
"The Syrian National Dialogue Congress, initiated by Russia, Iran, and Turkey this January, created conditions for political settlement on the basis of UN SC Resolution 2254", he went on to say.
At a news conference after his speech, Lavrov said the delivery of an S-300 surface-to-air missile system to Syria has begun. U.S. National Security Advisor John Bolton recently warned Russian Federation against the decision, advising it against escalating the already high tensions in the Middle East region.
He stated this at a press conference in NY, reports the Russian newspaper RBC.
In a phone call, Israeli Prime Minister Benjamin Netanyahu told Putin that "transferring advanced weapons systems into irresponsible hands will increase the dangers in the region", according to the Israeli prime minister's office. Russian Federation accuses Israel of downing the plane, but Israeli officials have denied the accusations and suspects the incident was due to miscalculations by Syria.
According to the Israeli military, Israel has carried out some 200 airstrikes against Syrian targets over the past year-and-a-half to prevent the proliferation of Iranian-supplied weapons to the terrorist organization Hezbollah. Israel and Russian Federation have maintained a special hotline to prevent their air forces from clashing in the skies over Syria. Israel blamed Iran - whose military infrastructure was being targeted and who has consistently threatened Israel's existence - as well as Syria, whose military personnel erroneously fired the missiles that shot down the Russian reconnaissance aircraft. Until last week's incident, such remarks were effectively prohibited in public in Russian Federation, because officials were certain that the person at the top-President Vladimir Putin-objected to them.