Iran's Foreign Minister Javad Zarif has offered wide-ranging support to Lebanon at the start of a two-day visit. On his maiden trip to Lebanon, Zarif is also the first foreign minister to visit the country since Lebanese politicians ended months of deadlock to form a unity government. He said his country is ready to cooperate in all sectors. The Iranian-backed group Hezbollah, which has three ministers in the new government, wants Lebanon to accept anti-aircraft weapons from Tehran. Sami Nader, the director of the Levant Institute for Strategic Affairs and columnist for Al Monitor's Lebanon Pulse, talks to Al Jazeera about the significance of the visit.