Iraqi Shi'ite Muslims perform the torch procession during a mourning ritual ahead of Ashura, the holiest day on the Shi'ite Muslim calendar, in the holy city of Najaf, Iraq, August 16, 2021. (Photo by Alaa Al-Marjani/Reuters)





Shi'ite pilgrims beat their chests, ahead of Ashura, the holiest day on the Shi'ite Muslim calendar in Baghdad, Iraq, August 17, 2021. (Photo by Thaier Al-Sudani/Reuters)





A Shiite faithful pilgrim beats himself with chains as a sign of grief for Imam Hussein during a Muharram procession outside the holy shrine of Imam Ali, the son-in-law and cousin of the Prophet Muhammad and the first Imam of the Shiites, in Najaf, Iraq, Monday, August 16, 2021. Muharram, the first month of the Islamic calendar, is a month of mourning for Shiites in remembrance of the death of Hussein, the grandson of the Prophet Muhammad, at the Battle of Karbala in present-day Iraq in the 7th century. (Photo by Anmar Khalil/AP Photo)





An Iraqi Shi'ite man pours black oil, to prepare the torch ahead of Ashura, the holiest day on the Shi'ite Muslim calendar, in the holy city of Najaf, Iraq, August 16, 2021. (Photo by Alaa Al-Marjani/Reuters)





Iraqi Shi'ite Muslims carry torches during a mourning ritual ahead of Ashura, the holiest day on the Shi'ite Muslim calendar, in the holy city of Najaf, Iraq, August 16, 2021. (Photo by Alaa Al-Marjani/Reuters)





Shi'ite pilgrims flagellate themselves ahead of Ashura, the holiest day on the Shi'ite Muslim calendar in the holy city of Kerbala, Iraq, August 18, 2021. (Photo by Abdullah Dhiaa Al-Deen/Reuters)





A man reacts after cutting his head to bleed in mourning with a knife as Shiite Muslims take part in mourning rituals on the day of Ashura, 10 Muharram according to the Islamic calendar commemorating the martyrdom of Prophet Mohammad's grandson Imam Hussein during the 7th century AD battle of Karbala, at the Imam Ali shrine in Iraq's central holy shrine city of Najaf early on August 19, 2021. (Photo by Ali Najafi/AFP Photo)





Shiite faithful pilgrims beat themselves with chains as a sign of grief for Imam Hussein outside the golden-domed shrine of Imam Moussa al-Kadhim during a Muharram procession in Baghdad, Iraq, Tuesday, August 17, 2021. Muharram, the first month of the Islamic calendar, is a month of mourning for Shiites in remembrance of the death of Hussein, the grandson of the Prophet Muhammad, at the Battle of Karbala in present-day Iraq in the 7th century. (Photo by Hadi Mizban/AP Photo)





Iraqi Shiite historical re-enactors play out the 7th century AD battle of Karbala coinciding with 10 Muharram according to the Islamic calendar commemorating the martyrdom of Prophet Mohammad's grandson Imam Hussein on August 19, 2021 in Iraq's central city of Nassiriyah. The Shiite commemoration of Ashura consists of a ten-day mourning period starting on the first day of Muharram, marking the seventh-century slaying of Prophet Mohammed's grandson Imam Hussein in Karbala. (Photo by Asaad Niazi/AFP Photo)





Security forces are deployed in Baghdad, Iraq, Friday, August 27, 2021. Iraqi special forces were deployed on the streets of the Iraqi capital a day ahead of a regional summit to be held in Baghdad, aimed at easing Mideast tensions and boosting Iraq's nascent role as a regional mediator. (Photo by Khalid Mohammed/AP Photo)





Shiite worshippers visit the holy shrine of Imam Abbas during Muharram processions in Karbala, Iraq, Thursday, September 2, 2021. Muharram, the first month of the Islamic calendar, is a month of mourning for Shiites in remembrance of the death of Hussein, the grandson of the Prophet Muhammad, at the Battle of Karbala in present-day Iraq in the 7th century. (Photo by Hadi Mizban/AP Photo)





Mourners escort the coffin of Grand Ayatollah Sayyid Mohammed Saeed al-Hakim to his home in Najaf, Iraq, Friday, September 3, 2021. Mohammed Saeed al-Hakim, one of Iraq's most senior and influential Muslim Shiite clerics, has died, members of his family said. He was 85. (Photo by Anmar Khalil/AP Photo)





Mourners mourn outside the house of Grand Ayatollah Sayyid Mohammed Saeed al-Hakim in Najaf, Iraq, Friday, September 3, 2021. (Photo by Anmar Khalil/AP Photo)





Members of Iraqi security forces stand guard as Shiite pilgrims march from the capital Baghdad to the shrine of Imam Hussein in the central holy city of Karbala, ahead of the Arbaeen religious festival, on September 23, 2021. Each year, Shia pilgrims converge in large numbers to the holy Iraqi cities of Najaf and Karbala ahead of Arbaeen, which marks the 40th day after Ashura, commemorating the seventh century killing of Prophet Mohammed's grandson Imam Hussein. (Photo by Ahmad Al-Rubaye/AFP Photo)





An aerial view shows the shrines of Imam al-Abbas and Imam al-Hussein ahead of the holy Shi'ite ritual of Arbaeen in Kerbala, Iraq, September 26, 2021. Picture taken with a drone. (Photo by Abdullah Dhiaa Al-Deen/Reuters)





Muqtada Haider turns the switches to transfer electricity to private homes in Baghdad, Iraq, Friday, September 10, 2021. In Iraq, electricity is a potent symbol of endemic corruption, rooted in the country’s sectarian power-sharing system. This contributes to chronic electrical outages of up to 14 hours a day in a major oil-producing nation with plentiful energy resources. (Photo by Hadi Mizban/AP Photo)





A campaign poster for upcoming early parliamentary elections is hanging behind a private generator network wires in Baghdad, Iraq, Monday, September 20, 2021. (Photo by Hadi Mizban/AP Photo)





Children cool themselves with water during a power outage in Basra, Iraq, Tuesday, July 29, 2021. (Photo by Hadi Mizban/AP Photo)





A man and his donkey pass by a campaign poster for the upcoming early parliamentary elections in Baghdad, Iraq, Monday, September 20, 2021. (Photo by Hadi Mizban/AP Photo)





Shiite worshipers react during the religious ceremony of Arbain near the tomb of Imam Hussain at the holy city of Karbala, southern Iraq, 26 September 2021 (issued on 27 September 2021). Iraqi Shiite Muslims gathered in the holy city of Karbala to perform the religious ceremony of Arbain, on the 40th day after the Shiite holy day of Ashura which commemorates the death of Imam Hussein at the battle of Karbala, while Iraqi security forces imposed tight security measures to protect the ceremony. (Photo by Ahmed Jalil/EPA/EFE)