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Syrian President Bashar al-Assad stated, “A Russian contract to supply the S-300 surface-to-air missiles was being implemented.” The S-300 defense system targets aircraft and has the capability to engage ballistic missiles.

 US Secretary of State John Kerry stated that Russia giving Syria weapons would have a "profoundly negative impact." In addition to Secretary Kerry, German Foreign Minister Guido Westerwelle, said “Russian plans to send a sophisticated air defense system to Assad also put Israel's security at risk.” 

Russia has said that they will be supply the S-300s because of an already existing contract. Additionally, Russian officials said they would attempt to convince Assad and his regime to take part in the Geneva peace talks.  However, Syrian opposition has already stated they will not attend the talks while violence ensues. 

ALSO SEE: Russia Sends Missiles To Syria

Despite different views on the Syrian conflict, the US and Russia are pushing for peace talks in Geneva to end the 26 month conflict. Peace talks were planned for next month in Geneva, but have been delayed at the very earliest until July .

The controversy in the matter is that Syria's President Bashar al-Assad suggested that his government had received delivery of the defense missiles, however on Friday, Russian media has stated that they have not been delivered.