A U.S. soldier helps an Afghan army soldier, one of two wounded in a rocket-propelled grenade attack, to an evacuation helicopter in the Arghandab district of Kandahar province, southern Afghanistan, on Monday Aug. 2, 2010. (AP Photo/Brennan Linsley)

Photo by: Brennan Linsley

A U.S. soldier helps an Afghan army soldier, one of two wounded in a rocket-propelled grenade attack, to an evacuation helicopter in the Arghandab district of Kandahar province, southern Afghanistan, on Monday Aug. 2, 2010. (AP Photo/Brennan Linsley)