There is no military solution to the war in Iraq. Our troops can help suppress the violence, but they cannot solve its root causes. And all the troops in the world won't be able to force Shia, Sunni, and Kurd to sit down at a table, resolve their differences, and forge a lasting peace. In fact, adding more troops will only push this political settlement further and further into the future, as it tells the Iraqis that no matter how much of a mess they make, the American military will always be there to clean it up.