The Next Attack's authors argue that Washington's mistakes in Iraq and at home have weakened U.S. security; Falkenrath responds.

Most discussions of U.S. policy in Iraq assume that it should be informed by the lessons of Vietnam. But the conflict in Iraq today is a communal civil war, not a Maoist "people's war," and so those lessons are not valid. "Iraqization," in particular, is likely to make matters worse, not better.

Over 70 years ago, the United Kingdom's occupation of Iraq proved so unpopular at home that London had to declare success and head for the exit. The British pulled out early, and chaos followed in their wake. If Washington hopes for better, it should study this example to learn how -- and how not to end an occupation.