The Receding American Imperium

It still surprises me when I see how anti-interventionist Andrew Sullivan has become since his souring on the Iraq War:

What this [Britain's inability to project its military due to its budget cuts] does to any idea of collective intervention or intervention with even a veneer of international legitimacy is surely profound. And that in turn exposes and isolates the US hegemon even further. It will make every argument for a new war an argument solely about the projection of American force, and make the endeavors seem even more neo-imperial. If you combine this with what will have to be real cuts in defense if the US is to avoid default, and the unavoidable disasters of the Iraq and Afghan adventures, then the American century, in terms of global control and global legitimacy, really is receding faster than many now realize.