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.

Authoritarian leaders around the world have recently started to crack down on democracy-promotion efforts in their countries. The Bush administration's pro-democracy bombast has not helped matters, but has contributed to the false idea that liberalization is somehow a U.S.-driven phenomenon.

Optimists argue that Hamas' participation in mainstream Palestinian politics will spur the group to moderate its radical goals and terrorist tactics. But history shows that political participation co-opts militants only under very specific conditions -- and almost none of those exist in the Palestinian Authority today.