Russian Deputy Foreign Minister Sergey Ryabkov stressed that it is the top priority MOSCOW, August 29. /TASS/. Moscow is working to prevent opponents of a Ukraine settlement from disrupting the understanding reached between Moscow and Washington in Alaska, Russian Deputy Foreign Minister Sergey Ryabkov told reporters. "We are currently working to prevent opponents of the moves toward resolving the situation in and around Ukraine from undermining the understanding that was reached in Anchorage.