You said -- "But if they don't want it, how can it be successful?"
Well..., first of all, I think you're going to have a "shoo-in" with the Kurds, over this issue. So, I would say that they are "in" with it.
Then, I would suspect you can split off the other minority group, that Saddam Hussein belonged to -- because they feel repressed in their own country now. They would probably go for their own autonomy, of sorts.
Then, that would leave the *one group* by itself -- and it was be "de facto" -- done -- since the other two had already split off. There would be nothing for them to do.
Regards,
Star Traveler
I've got a prediction on how this is going to play out. The US will get the UN to negotiate a split of the country into the aforementioned autonomous zones. Saddam's trial will either end in a not guilty verdict, or he'll be freed by his followers shortly after the US announces a drawdown of forces. Saddam wiil get control again and attempt to destroy the Kurds and reunite Iraq. There's a reason he isn't dead yet. He'll be back in power yet. Like Castro, he'll outlast his nemesis, GWB.