Those of us who came of age during the Bush administration remember a simple dichotomy: Hawkish Defense Department, dovish State Department.

Back then, it was the pugnacious defense secretary Donald Rumsfeld who was pushing hardest for war against Iraq, even if it meant maligning American allies like France and Germany as “Old Europe.” Secretary of State Colin Powell also wound up supporting the war (at least in public), but he was far more skeptical, and more than once found himself in Rumsfeld’s crosshairs.