Gen. David Petraeus, head of the U.S. Central Command, poses with University President Richard Levin and the students and faculty of the Studies in Grand Strategies seminar at the Greenberg Conference Center on Thursday. Petraeus, who led coalition forces in Iraq in 2007 and 2008, was the latest high-profile official to address the class.

After the session (which was closed to the press), Levin took Petraeus on a campus tour in a motorcade before returning to the conference center for lunch.