Final preparations are under way in Iran for a six-day funeral for Supreme Leader Ali Khamenei, who was killed in the opening salvo of a US-Israeli attack on the country in February. The ceremony, beginning Saturday in Tehran and ending with burial Thursday in Mashhad, is intended as an epic display of personal mourning, national power, resilience, and social cohesion.

Iran's first vice-president and lead funeral organizer, Mohammad Reza Aref, called it "the most important event of this century" and predicted it would be the most attended gathering since the 1979 revolution. The scale of the event is designed to relay political and religious messages of resistance to the rest of the world. At the request of Iraqi politicians, Khamenei's body will also be carried through the Iraqi Shia cities of Karbala and Najaf.

The event highlights the regime's effort to project unity following the shocking assassination of its top leader. By orchestrating a massive, multiday procession, Iranian leaders aim to reinforce domestic legitimacy and signal defiance to regional adversaries. The participation of Iraqi Shia political figures underscores the trans-national nature of the response.

It remains unclear whether Khamenei's son and designated successor, Mojtaba Khamenei, will take part in the funeral proceedings. His absence would raise questions about the internal succession process and the cohesion of the ruling clerical establishment.

Observers note that the funeral's scale and duration are without precedent in modern Iranian history, exceeding even the massive ceremonies following Ayatollah Khomeini's death in 1989. The event will be closely watched for signs of factional tension or public dissent amid the ongoing crisis.