Defense Minister Ehud Barak will leave for a one-day trip to Vienna on Monday for talks with the Austrian leadership about the Iranian nuclear threat. Barak is scheduled to hold talks with Austria's Chancellor Werner Faymann, President Dr. Heinz Fischer, Defense Minister Norbert Darabos and Foreign Minister Michael Spindelegger. The Defense Ministry said that Barak will talk about "Israel's security needs" and work to boost defense relations between the two countries.