“Could you tell me how the US “divides Iraq in 3”?”
Western Sunni province with Mosul as an economic center so the Sunnis have a source of oil revenues, Kurds with Kirkuk as the economic center so Kurds have a source of oil revenues
and the Shia in the south with the southern oil fields as their economic center.Arab Sunni and Shia do not play well together so there will be some movement in currently mixed areas until they eventually separate to their respective regions Call it a loose confederation but the reality is they would be independent states. Our only true ally would be the Kurds.
You missed the point. We have no power, no authority and no will to do anything in Iraq.