Putin and Erdogan discuss S-400 missile deal

Russian President Vladimir Putin and his Turkish counterpart on Monday discussed a missile deal slammed by the US as well as closer military cooperation during a visit by Recep Tayyip Erdogan to Moscow.The two sides must "strengthen cooperation in the military-technical sphere," Putin told Erdogan as they met in the Kremlin."These regard first of all the completion of the contract to supply S-400 anti-aircraft missile systems to Turkey," he said.