Iraqi police officers march during a graduation ceremony in Baghdad, Iraq, Sunday, July 20, 2008. Prime Minister Nouri al-Maliki has not endorsed any specific timeframe for possible U.S. troop withdrawals, Iraq's government spokesman said Sunday.
Iraqi children clean a bucket with water from a polluted pond inside a camp for internally displaced persons on the outskirts of Najaf, 100 miles south of Baghdad, Iraq, Saturday, July 19, 2008.
An Iraqi man suspected of a violent crime is led to a room for processing after a raid by U.S. troops and Iraqi police in a village in Muqdadiyah, about 60 miles north of Baghdad, in Iraq's volatile Diyala province on Saturday, July 19, 2008.
Followers of the anti-American cleric Muqtada al-Sadr hold his photo as they react on the street in Kufa, Iraq, Friday, July 18, 2008. Hundreds of followers of al-Sadr took to the streets in Kufa after their Friday prayers to protest a proposed security deal between Iraq and the United States.
Tribal Sheik Jaafar Hussein Dandan al-Massoudi, left, talks with Col. Jefforey Smith, a deputy commander of the U.S. Army 10th Mountain Division, in Khidr, Iraq on Thursday, July 17, 2008.
A U.S. Army soldier from Hammer Company, Third Squadron, Second Stryker Cavalry Regiment, is silhouetted by the moon during a patrol in the Shiite village of Sebta, about 60 miles north of Baghdad, in Iraq's volatile Diyala province on Friday, July 18, 2008.
Iraqi police officers celebrate as more than 400 police officers graduated from a police academy in Najaf Thursday, July 17, 2008.
A U.S. Army soldier from Hammer Company, Third Squadron, Second Stryker Cavalry Regiment, is eyed by an Iraqi teen during a visit to the boy's home in the Shiite village of Sebta, about 60 miles north of Baghdad in Iraq's volatile Diyala province on Friday, July 18, 2008.
Children play soccer on a street in Baghdad's Fadhil neighborhood, Iraq, Wednesday, July 16, 2008.
A woman passes by a destroyed house on a street in Baghdad's Fadhil neighborhood, Iraq, Wednesday, July 16, 2008.
Iraqi security forces show their skills during a province handover ceremony in Diwaniyah, 80 miles south of Baghdad, Iraq, Wednesday, July 16, 2008. Coalition forces have handed over control of the Qadisiyah province south of Baghdad to the Iraqi government, reflecting the improvement in security across the country.
A graduate waves to her family members during a graduation ceremony at a university in Baghdad, Iraq, Tuesday, July 15, 2008. A group of 400 students graduated from al Nahrain University in Baghdad on Tuesday.
A woman mourns as bodies of victims of a suicide attack are brought to a hospital morgue in Baqouba, Iraq, Tuesday, July 15, 2008.
A man mourns next to bodies of victims of a suicide attack in Baqouba, 35 miles northeast of Baghdad, Iraq, Tuesday, July 15, 2008. Two suicide bombers blew themselves up in a crowd of army recruits northeast of Baghdad on Tuesday, killing at least 28 people, Iraqi police said.
A man injured in a suicide attack is wheeled into a hospital in Baqouba, 35 miles northeast of Baghdad, Iraq, Tuesday, July 15, 2008.
An Iraqi army officer registers internally displaced persons in Baghdad, Iraq, Tuesday, July 15, 2008. The Iraqi government organized a mass registration of internally displaced families in Baghdad Tuesday.
A child writes on a blackboard during a literacy class in a village on the outskirts of Najaf, 100 miles south of Baghdad, Iraq, Tuesday, July 15, 2008. According to some estimates, up to thirty percent of adults in Iraq are illiterate.
A boy passes by an Iraqi army soldier on patrol in northwest Baghdad's Shula neighborhood, Iraq, Monday, July 14, 2008.
Iraqi army soldiers pass a destroyed building as they patrol the streets of northwest Baghdad's Shula neighborhood, Iraq, Monday, July 14, 2008.
An Iraqi flag is seen on a wall as Iraqi army soldiers patrol the streets of northwest Baghdad's Shula neighborhood, Iraq, Monday, July 14, 2008.