Looking at the United States from the outside in, these are the primary lessons the world should take away from America's "global war on terrorism" under Bush-Cheney.
Potential state-based adversaries should take little comfort from the U.S. government's record in Afghanistan and Iraq, primarily because its military has proven itself capable of learning how to better shape postwar outcomes - its Achilles' heel since World War II. Worse, for them, that learning curve has kept its casualty levels low enough to call into question the long-held assumption that America has the patience only for short wars.
I also suggest checking out the latest postings at Barnett's blog and pre-ordering a copy of his latest book, Great Powers: America and the World After Bush, which comes out on Feb. 5.
I'll be reading and blogging about Great Powers soon after it becomes available.