Foreign Minister Avigdor Lieberman said Monday that the "Iranian issue" is the most important matter in Israel's foreign policy.Speaking at the annual meeting of the Governing Board of the World Jewish Congress (WJC) in Jerusalem, the foreign minister criticized Iran for meddling in the internal affairs of Arab countries throughout the Middle East, suppressing anti-government protests in Syria and training Hezbollah in Lebanon.Lieberman also said that the Islamic Republic sought to influence Saudi Arabian affairs by "penetrating Yemen."