What Kevin Drum is too nice to say….
It’s a quagmire.
One other thing. Those who whole-heartedly supported going to war with Iraq (particularly when it was the someone other than themselves who would be doing that messy fighting and dying stuff) now are awful quick to declaim, “Well. What would you do in Iraq now?”. This is analogous to sitting in a car with someone who is about to drive off of a cliff and advising them against it. Then, after they do it anyway, they turn to you and say, “Okay. Fine. Mr. Smartypants. You take the wheel.”.