Iran has issued a stern warning following the death of Hezbollah's leader, stating that his blood "will not go unavenged." Ayatollah Ali Khamenei has declared a five-day mourning period in honor of his ally, referring to the leader's passing as "martyrdom." This announcement underscores the deep ties between Iran and Hezbollah, highlighting the potential for heightened tensions in the region as Iran vows to respond to this loss.