Moscow considers the US demands to Turkey to “give up the purchase of Russian S-400 surface-to-air missile defense systems unacceptable.”
Russian servicemen drive S-400 missile air defense systems during the Victory Day parade, marking the 73rd anniversary of the victory over Nazi Germany in World War Two, at Red Square in Moscow, Russia May 9, 2018(photo credit: REUTERS/SERGEI KARPUKHIN)BySETH J. FRANTZMAN
