"The Secretary called Russian Foreign Minister Lavrov this morning to discuss Syria, including U.S. concerns about reports suggesting an imminent enhanced Russian military build-up there. The Secretary made clear that if such reports were accurate, these actions could further escalate the conflict, lead to greater loss of innocent life, increase refugee flows and risk confrontation with the anti-ISIL Coalition operating in Syria," according to the redout of U.S. Secretary John Kerry's call with Russian Foreign Minister Sergey Lavrov.
Russian Ministry of Foreign Affairs does not publish the details of the conversation, stating about the very fact of the call and the discussed issue, "Syria and around".
Russia provided crucial military and financial support to the Bashar al-Assad regime since the start of the Syrian uprising, including military advisers and hardware. Now numerous sources provide the evidence of Russian presence there to defend flagging Syrian allies against the rebels.