The Islamic Republic of Iran has initiated a series of public mourning and funeral events, spanning several days, in honor of its late Supreme Leader, Ayatollah Ali Khamenei. Killed in February by US-Israeli strikes, Khamenei's body will lie in state at Tehran's Grand Mosalla from Friday until his burial in Mashhad on Thursday. Iranian officials anticipate 12 to 20 million people attending the ceremonies, which they refer to as the "funeral of the century." The events, including six days of rituals and prayers starting on Saturday, aim to commemorate Khamenei's life and influence across the Shia Muslim world. Iranian authorities have ordered the closure of public and private offices in Tehran from Saturday through Monday, while traffic restrictions will limit access to the city center. The airspace over Tehran will be partially closed on Friday and fully shut down on Monday. Ceremonies will continue in Qom, Najaf (Iraq), and Karbala before Khamenei's final resting place in Mashhad. Representatives from multiple countries, including Pakistan's Prime Minister Shehbaz Sharif, are expected to attend the ceremonies. The funeral's outcome, such as the attendance of Khamenei's successor, his son Mojtaba, and the selection of the funeral prayer leader, remains uncertain, sparking speculation about Iran's religious and political future.