This is because, despite the government calling itself a government "of national unity," there is no national unity. The three major factions are the Shi'ia, the Sunni and the Kurds. And none of those three trust the other two. So, as long as the Shi'ia are running things in Baghdad, the Sunnis will find themselves on the outs. The Kurds have all ready set up their own de-facto state in the north and they are currently dealing with Turkey, selling them oil. They are negotiating with foreign countries as if they were their own nation. Since they have oil, lots of countries want to talk to them.
Any country, created out of a whole cloth with a straight edge without any respect to who lives where and what the various factions are, how they work together or even if they get along at all is doomed to either a dictator or this kind of factionalism, leading to civil war.
This is because, despite the government calling itself a government "of national unity," there is no national unity. The three major factions are the Shi'ia, the Sunni and the Kurds. And none of those three trust the other two. So, as long as the Shi'ia are running things in Baghdad, the Sunnis will find themselves on the outs. The Kurds have all ready set up their own de-facto state in the north and they are currently dealing with Turkey, selling them oil. They are negotiating with foreign countries as if they were their own nation. Since they have oil, lots of countries want to talk to them.
Any country, created out of a whole cloth with a straight edge without any respect to who lives where and what the various factions are, how they work together or even if they get along at all is doomed to either a dictator or this kind of factionalism, leading to civil war.