I shouldn't opine on this, since I'm pretty ignorant, but lots of people do who are even more ignorant, and this is less opining than throwing a thing out into the wind.
A friend of mine is writing a play about Iraq, and one excellent scene that probably won't make it into his final cut is all about the uprisings in 1991, which Saddam's planes crushed while the Allies didn't enforce a no fly zone. When they eventually did, the rebels were dead. It's not a scene about simple answers, but it's about how everything hard costs something, often lives, and military force is a real part of the story, and dictators don't stop until someone makes them. And about how our taste for intervention wavers depending on its most recent results. I've been thinking about the scene a lot this week.
(The scene also has some good jokes, and it's sexy. And it's likely to be cut. Just imagine how good this play must be.)