Dressed in black and draped in the red, white and green flags of the Islamic Republic of Iran, mourners held up posters and A4 printed sheets with pictures of Khamenei and his son and successor as supreme leader, Mojtaba Khamenei. Iran is staging mass funeral processions for Khamenei, who was killed in February by the opening airstrikes of the war launched by the U.S. and Israel, in a show of public devotion to the Islamic Republic's theocratic state and revolutionary zeal.