U.S. troops leave Camp Nathan Smith on a dismounted patrol to survey equipment at a public works facility in Afghanistan's Kandahar province, Aug. 8, 2012. The troops are assigned to the Kandahar Provincial Reconstruction Team.
U.S. Army Spc. Lawrence Lopez provides security during a patrol through Khushki Danda in Afghanistan's Khost province, July 29, 2012. Lopez is assigned to the 25th Infantry Division's Company D, 1st Battalion, 501st Infantry Regiment, 4th Brigade Combat Team.
Afghan police officers join U.S. and Afghan soldiers as they prepare to enter a pump house to search for weapons caches in Karizownah in Afghanistan's Khost province, July 30, 2012.