Rebels who have inflicted big losses on Syrian President Bashar al-Assad say Russia's intervention in support of its ally will only lead to an escalation of the war and may encourage the rebels' Gulf Arab backers to pour in more military aid.
Prime Minister Benjamin Netanyahu flew to Moscow on Monday to seek reassurance from President Vladimir Putin about Russia's military deployment in Syria and to lay out Israel's concerns about the risk of weapons reaching militants on its borders.
The Syrian military has recently started using new types of air and ground weapons supplied by Russia, a Syrian military source told Reuters on Thursday, underlining growing Russian support for Damascus that is alarming the United States.
France's Prime Minister Manuel Valls said on Tuesday a deal with Syrian President Bashar al-Assad to reach a political transition was impossible, but said Paris would back regional ground troops if they were to intervene against Islamic State militants.
