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.
Demographics of Yemen
Religion in Yemen consists primarily of two principal Islamic religious groups: 53% of the Muslim population is Sunni and over 45% is Shia, according to the UNHCR. Other put the numbers of Shias at 30%. Sunnis primarily adhere to the Shafi'i school, and there are also significant followers of the Maliki and Hanbali schools. Shias are primarily Zaidi and also have significant minorities of Twelver and Ismaili Shias.