Jonathan Chait (sub. req’d.) has a good column on the subject. It does seem to me that people are overreading the lessons of the Iraq war: I’ve read people who opposed the first Gulf War, and even World War II, write as though this war vindicated their foreign-policy views generally. I’ve even recently read a debate about whether “hawks” or “doves” were more likely to make mistakes as a result of their psychological tendencies. I would think that anyone who has adopted “hawkishness” or “dovishness” as a general stance has already made a pretty big mistake (although a generic hawkishness would be creepier).