Middle Eastern republic (4)
(Other definitions for iraq that I've seen before include "Country of western Asia" , "Country containing Basra" , "Where no WMD were found" , "Country containing ancient Mesopotamia" , "Middle Eastern nation" .)
(Other definitions for iran that I've seen before include "Iraq's neighbour" , "Country lying to south of Caspian sea" , "Nation" , "It used to be Persia" , "Country that was Persia" .)