Recruited Afghan soldiers march after taking an oath during a ceremony at the Ghazi Military Training Center, where they are being trained by Turkish military officers of the NATO-led International Security Assistance Force (ISAF) in Kabul, Afghanistan, on Thursday, July 15, 2010. (AP Photo/Musadeq Sadeq)
Recruited Afghan soldiers march through a colored fog bomb after taking an oath during a ceremony at the Ghazi Military Training Center, where they are being trained by Turkish military officers of the NATO-led International Security Assistance Force (ISAF) in Kabul, Afghanistan, on Thursday, July 15, 2010. (AP Photo/Musadeq Sadeq)
Recruited Afghan soldiers place their hands on a copy of the Quran, Islam's holy book, during an oath taking ceremony at the Ghazi Military Training Center, where they are being trained by Turkish military officers of the NATO-led International Security Assistance Force (ISAF) in Kabul, Afghanistan, on Thursday, July 15, 2010. (AP Photo/Musadeq Sadeq)
** FILE ** Trucks carrying supplies to coalition forces burn after hundreds of people blocked a main road and set them on fire to protest what they said were civilian deaths in NATO operations in Logar province, west of Kabul, Afghanistan, on April 25, 2010. (AP Photo/Mohammed Obaid Ormur, File)
Afghans collect fuel from a tanker shot up in an attack on a NATO supply convoy in Baghlan province, north of Kabul, Afghanistan, Tuesday, July 6, 2010. (AP Photo)
** FILE ** In this May 10, 2010, file photo, Commander of U.S. and NATO forces in Afghanistan Gen. Stanley McChrystal, and U.S. Ambassador to Afghanistan Karl W. Eikenberry brief reporters ahead of Afghan President Hamid Karzai's visit at the White House. (AP Photo/Charles Dharapak)
Pakistani officials get ready on Nov. 17, 2008 near Peshawar to escort trucks carrying supplies for NATO and U.S. forces to neighboring Afghanistan through Pakistan's Khyber Pass, an increasingly perilous 30-mile stretch. (Associated Press)