** FILE ** Gen. David H. Petraeus (center right), the newly appointed International Security Assistance Forces commander, greets Lt. Gen. David Rodriguez upon Gen. Petraeus' arrival in Kabul, Afghanistan, in July 2010 to take command of U.S. and international forces fighting the nearly 9-year-old war. (AP Photo/Staff Sgt. Daylena Gonzalez, U.S. Air Force)

Photo by: Staff Sgt. Daylena Gonzalez

** FILE ** Gen. David H. Petraeus (center right), the newly appointed International Security Assistance Forces commander, greets Lt. Gen. David Rodriguez upon Gen. Petraeus' arrival in Kabul, Afghanistan, in July 2010 to take command of U.S. and international forces fighting the nearly 9-year-old war. (AP Photo/Staff Sgt. Daylena Gonzalez, U.S. Air Force)