Religion in Iraq
Islam is the official state religion in the Republic of Iraq, but the constitution guarantees freedom of religion. Iraq is a multi ethnic and multi religious country with Islam, Christianity, Yazdanism, Zoroastrianism, Shabakism, Judaism, Mandaeism, Bahā'i, Ahl-e Haqq-Yarsanis, Ishikism and numerous other religions all having a presence in the country. Shia Islam is the main religion in Iraq followed by 60–65% of the population, while Sunni Islam is followed by 32–37% of the people. Many cities throughout Iraq have been areas of historical prominence for both Shia and Sunni Muslims, including Najaf, Karbala, Baghdad and Samarra.
Religion in Iran
Sunni websites and organizations complain about the absence of any official records regarding their community and believe their number is much greater than what is usually estimated. Demographic changes have become an issue for both sides. Scholars on either side speak about the increase in the Sunni population and usually issue predictions regarding demographic changes in the country. One prediction, for example, claims that the Sunnis will be the majority in Iran by 2030.