subdividing Iraq into 3 separate countries. Kurds, Shiites and Suni each having their own states. Do I remember my history correctly that Iraq is a kluged together POS from back in British days? They just stuck them all together and said, "poof... you're a country." Or am I thinking of something else.
Since they cant/wont get along with each other, let them each go to their own corner and stay there. If they want to ally with each other at a later date, it's up to them to work it out.
Although, Turkey would throw a sh*tfit if the Kurds got their own country.