Gen. David Petraeus handed over command of U.S. and coalition forces in Afghanistan to Gen. John Allen on Monday. Petraeus’ one-year stint included supervision of a troop surge, though it’s unclear if it had the desired results: Violent attacks continued in Afghanistan throughout its implementation. In Newsweek, John Barry follows Petraeus during his last week on the job, and Petraeus addresses the many calls from Republicans for him to run for president, saying, “Yes, I want to be president—president of Princeton.”