U.S. Marine Lance Cpl. John Brewer, 26, of Miss., with the 3rd Battalion 2nd Marines based in Camp Lejeune, N.C., fires at insurgents during a fire fight in the village of Salam Bazaar Wednesday, July 20, 2011 in Helmand province, Afghanistan. (AP Photo/David Goldman)

Afghan National Army Soldier who goes by the name of Mohammad, right, takes a firing position next to U.S. Marine Lance Cpl. John Brewer, 26, of Miss., left, with the 3rd Battalion 2nd Marines based in Camp Lejeune, N.C., before engaging insurgents in a fire fight in the village of Salam Bazaar Wednesday, July 20, 2011 in Helmand province, Afghanistan. (AP Photo/David Goldman)

U.S. Marines with the 3rd Battalion 2nd Marines based in Camp Lejeune, N.C., fire at insurgents during a fire fight in the village of Salam Bazaar Wednesday, July 20, 2011 in Helmand province, Afghanistan. (AP Photo/David Goldman)

U.S. Marines with the 3rd Battalion 2nd Marines based in Camp Lejeune, N.C., fire at insurgents during a fire fight in the village of Salam Bazaar Wednesday, July 20, 2011 in Helmand province, Afghanistan. (AP Photo/David Goldman)

U.S. Marine Staff Sgt. Jon Joyce, 39, of N.C., with the 3rd Battalion 2nd Marines based in Camp Lejeune, N.C., calls for more ammo during a fire fight with insurgents in the village of Salam Bazaar Wednesday, July 20, 2011 in Helmand province, Afghanistan. (AP Photo/David Goldman)

U.S Marines stands in front of portraits of Afghan historical figures during a ceremony to hand over control of security in the town of Lashkar Gah in Helmand province, southern Afghanistan, July 20, 2011. The Afghan police and army took control of security in Lashkar Gah, the capital of Helmand province and the most contentious of the seven areas to be handed over this week. (REUTERS/Shamil Zhumatov)

U.S. Marine Cpl. Cody Ray, 21, of Texas, with the 3rd Battalion 2nd Marines based in Camp Lejeune, N.C., fires at insurgents during a fire fight in the village of Salam Bazaar Wednesday, July 20, 2011 in Helmand province, Afghanistan. (AP Photo/David Goldman)

U.S. Army Specialist Jason Williams (R)and Private First Class Dillon Cable fire a 120mm mortar during a fire fight between Taliban fighters and Afghan and US soldiers from Alpha company, 2nd battalion, 27th Infantry Regiment, in Combat Outpost Pirtle King in Kunar province, Afghanistan, July 18, 2011. (REUTERS/Baz Ratner)

U.S. Army Specialist Blair Brown loads a 120mm mortar shell during a fire fight between Taliban fighters and Afghan and U.S. soldiers from Alpha company, 2nd battalion, 27th Infantry Regiment at Combat Outpost Pirtle King in Kunar province, Afghanistan, July 18, 2011. (REUTERS/Baz Ratner)

U.S. Army soldiers from the mortars team, B company, 2-27 infantry fire a 82mm mortar from Combat Outpost Monti in Kunar province July 16, 2011. (REUTERS/Baz Ratner)