American, or even future Iraqi, military prowess won't be enough to defeat Iraq's bloody insurgency. Victory in Iraq is going to come as much — or more — from political/economic progress in that battered nation as it will from military dominance.Which means that — rather than engaging in mostly useless, politically-motivated caterwauling about a U.S. military "exit strategy" from Iraq — Washington's political class should be concentrating on developing a comprehensive political/economic/military strategy to compel the insurgents to plan their exit strategy.As we all know from our still-painful experience in Vietnam, battlefield victories, while important, are often irrelevant in determining...