It should be noted that the Kurds are not only not Arabs or Turks, they speak an Indo-European language, or, properly, group of languages. However, they are not Shi'a, as the Iranians are, who also are of Indo-European stock. They are really only interested in the territory which was traditionally considered as Kurdish, before Saddam started his assimilation program of moving Arabs, mostly Sunni, into towns previously almost exclusively Kurdish. I expect them to be interested in the far north of Iraq, since what they really want is an independent Kurdistan, which would include all of northern Iraq, southern Turkey and northeastern Iran. They are known as fierce fighters. Once they recapture the traditionally Kurdish part of northern Iraq, I expect them to lose interest in moving further south, which will leave a band of Sunni territory north of Baghdad. Way back, after our invasion, I said I believed that Iraq needed to be partitioned into three bands and that I thought it eventually would be. It just took longer than I thought...