Defense Minister Avigdor Liberman left for Moscow Wednesday to meet his Russian counterpart, Sergey Shoygu. Before leaving, Liberman tweeted: 'I am about to leave for a work visit in Russia..' 'The main focus our security system was, and still is, the expansion of Iran and it proxies in Syria,' he said. Liberman's visit to Russia comes a day after the escalation in the Gaza border Tuesday. Violence on the border ceased Wednesday. On Monday, Channel 2 News reported that Jerusalem and Moscow reached an understanding to keep Iranian and Hezbollah forces away from Syria's border with Israel on the Golan Heights.