File photo of U.S. Army Gen. David H. Petraeus delivering remarks at Kandahar Airfield

 
File photo of U.S. Army Gen. David H. Petraeus delivering remarks at Kandahar Airfield
U.S. Army Gen. David H. Petraeus, commanding general of the NATO International Security Assistance Force (ISAF) and U.S. Forces Afghanistan (USFOR-A), delivers remarks before he administers the oath of re-affirmation and re-enlistment to U.S. service members at Kandahar Airfield in Kandahar in this Photo taken July 4, 2011. REUTERS/Haraz N. Ghanbari/U.S. Navy/Handout