In the United States, in a far more simple time, it took eight years following the end of fighting in the American Revolution to establish the American government. In France, 50 years. In Britain, 210 years. Nobody should expect that the current turbulence is going to subside and that there will be a neat solution within a few years.
In fact, what is happening now is that the global order established following the First World War and the collapse of the Ottoman Empire is itself collapsing and is going to be replaced by a new order. And you should concentrate on helping the people build up that new order.
Finally, the order established after the First World War replaced the Ottoman Empire, which for 400 years dominated the region based in Turkey. And Iraq at that time … for 400 years was three administrative districts operated separately by the Ottomans. The notion and nation of Iraq is a recent construct. It’s less than 100 years old, and it’s undergoing great strain now which it may not be able to survive.
George Mitchell, quoted in Taking the Long View on the Middle East, by Uri Friedman of The Atlantic.