Iraq

First: Iraqi citizenship is a right for every Iraqi and is the basis of his nationality.
Second: Anyone who is born to an Iraqi father or to an Iraqi mother shall be considered an Iraqi. This shall be regulated by law.
Third:
A. An Iraqi citizen by birth may not have his citizenship withdrawn for any reason. Any person who had his citizenship withdrawn shall have the right to demand its reinstatement. This shall be regulated by a law.
B. Iraqi citizenship shall be withdrawn from naturalized citizens in cases regulated by law.
Fourth: An Iraqi may have multiple citizenships. Everyone who assumes a senior, security or sovereign position must abandon any other acquired citizenship. This shall be regulated by law.
Fifth: Iraqi citizenship shall not be granted for the purposes of the policy of population settlement that disrupts the demographic composition of Iraq.
Sixth: Citizenship provisions shall be regulated by law. The competent courts shall consider the suits arising from those provisions. (Art. 18)

The federal government shall have exclusive authorities in the following matters:
…
Fifth: Regulating issues of citizenship, naturalization, … (Art. 110)