Iran’s Supreme Leader Ali Khamenei described the Lebanese Hezbollah militant group as “unconquerable” on Saturday in comments after its leader, Hassan Nasrallah, was confirmed dead in an Israeli airstrike. “The criminal Zionists (Israelis) should know that they are incapable of damaging the stable structure of Hezbollah as the leader of the resistance front,” Khamenei said in a statement, according to the IRNA state news agency. Khamenei did not address the death of Hezbollah leader Hassan Nasrallah, which was announced by Israel and confirmed by Hezbollah later on Saturday. Iran is a major su…