In revisiting the U.S. approach to the Iraq war, Petraeus found tactical success--that is, improved security--but not the clear political breakthrough that would have meant unambiguous strategic success. At the end of the surge, the fundamental political problems facing Iraq were the same ones as when it began. At the end of 2008, two years into the revamped war, there was no prospect of the fighting ending anytime soon. But it was almost certain that whenever it did end, it wouldn't be with the victory that the Bush administration continued to describe, of an Iraq that was both a stable democracy and an ally of the United States. Nor was that really the goal anymore, though no one had said so publicly. Under Petraeus, the American goal of transforming Iraq had quietly been scaled down. But even his less ambitious target of sustainable security would remain elusive, with no certainty of reaching it anytime soon.