Iran's Supreme Leader Ali Khamenei, who had ruled for nearly 40 years, has been confirmed dead by state media, following an apparent U.S.-Israel military operation. The death was announced early Sunday, just hours after U.S. and Israeli officials reported it. Khamenei, who was 86 years old, was reportedly killed 'in his office at the leader's house' while performing his duties, highlighting the significant threat posed by the two nations against Iran's leadership.