Russia has said it will supply one of its most advanced anti-aircraft missile systems to the Syrian government, hours after the EU ended its arms embargo on the rebels, raising the prospect of a rapidly escalating proxy war in the region if peace talks in Geneva fail next month. Israel quickly issued a thinly veiled warning that it would bomb the Russian S-300 missiles if they were sent to Syria, as such a move would bring the advanced guided missiles within range of civilian and military planes over Israel