A woman walks past black flags after a radical Shiite cleric announced a three-day mourning period in Sadr City in Baghdad, Iraq, Sunday, Nov. 30, 2008, in protest against the U.S.-Iraqi security pact approved by the Iraqi parliament earlier this week.
A U.S. Army soldier from Alpha Company, 1st Battalion, 5th Infantry Regiment searches a building as his platoon leader meets with Iraqi police and security volunteers in Baqouba, 35 miles northeast of Baghdad, Iraq, on Sunday, Nov. 30, 2008.
U.S. Army Pfc. Robert McFarland, 25, from Friendswood, Texas eyes the skyline outside his armored Stryker vehicle while on patrol with Alpha Company, 1st Battalion, 5th Infantry Regiment patrol in Baqouba, 35 miles northeast of Baghdad, Iraq, on Sunday, Nov. 30, 2008.
U.S. Army soldiers from Alpha Company, 1st Battalion, 5th Infantry Regiment pray before heading out on patrol in Baqouba, 35 miles northeast of Baghdad, Iraq, on Sunday, Nov. 30, 2008.
U.S. Army soldiers from Alpha Company, 1st Battalion, 5th Infantry Regiment are seen reflected in a rearview mirror as an Iraqi policeman practices how to search a car in Baqouba, 35 miles northeast of Baghdad, Iraq, on Sunday, Nov. 30, 2008.
Men dig out bodies from a mass grave discovered near a former Sunni insurgent stronghold of Khalis, north of Baghdad, Iraq, Saturday, Nov. 29, 2008. Iraqi officials said the mass grave contained the bodies of 33 men, women and children. Police say they believe the victims were killed by al Qaeda in Iraq militants who wielded sway in the area before a recent downturn in violence.
U.S. Army Cpl. Alexander Lewis, 21, from Las Vegas, Nev., foreground, and Spc. Ryan Karandzieff, 24, from St. Louis, Mo. with Alpha Company, 1st Battalion, 5th Infantry Regiment, eat Thanksgiving dinner at a combat outpost in Baqouba, 35 miles northeast of Baghdad, Iraq on Thursday, Nov. 27, 2008.
A U.S. Army soldier looks at caged turkeys on display outside the dining hall, which put on a lavish Thanksgiving spread, at Forward Operating Base Warhorse in Baqouba, 35 miles northeast of Baghdad, Iraq, on Thursday, Nov. 27, 2008.
An Iraqi boy looks on during a joint U.S. and Iraqi military security sweep in the Sadriyah neighborhood, Baghdad, Iraq, Tuesday, Nov. 25, 2008.
An Iraqi boy holds a toy gun, during a joint American and Iraqi military security sweep in the neighborhood of Sadriyah in Baghdad, Iraq, Tuesday, Nov. 25, 2008.
An Iraqi soldier inspects a yard during a joint American and Iraqi military security sweep in the neighborhood of Sadriyah, in Baghdad, Iraq, Tuesday, Nov. 25, 2008.
An Iraqi child cries during a joint American and Iraqi military security sweep in the neighborhood of Sadriyah in Baghdad, Iraq, Tuesday, Nov. 25, 2008.
Iraqi army soldiers are seen behind the bullet-ridden door of an army vehicle damaged in previous fighting, at an Iraqi army base in Sukor neighborhood, northeastern Mosul, Iraq, Monday, Nov. 24, 2008.
A U.S. Army soldier, of Iron Hawk, Third Squadron, Third Armored Cavalry Regiment, walks behind barbed wire of a check point during a routine patrol in Sukor neighborhood, northeastern Mosul, Iraq, on Monday, Nov. 24, 2008.
U.S. Army soldiers, of Iron Hawk, Third Squadron, Third Armored Cavalry Regiment, secure the area at a check point during a routine patrol in Sukor neighborhood, northeastern Mosul, Iraq, on Monday, Nov. 24, 2008.
An Iraqi army soldier talks on his phone as he stands next to an army vehicle damaged in previous fighting, at an Iraqi army base in Sukor neighborhood, northeastern Mosul, Iraq, Monday, Nov. 24, 2008.
Iraqi security forces inspect the wreckage of a bus bombing in Baghdad, Iraq, Monday, Nov. 24, 2008. A female suicide bomber blew herself up near an entrance to the U.S.-protected Green Zone and a bomb tore through a bus carrying Iraqi government employees in separate attacks on Monday, killing at least 18 people, Iraqi officials said.
An Iraqi civilian inspects the wreckage of a bus bombing in Baghdad, Iraq, Monday, Nov. 24, 2008.
Iraqi civilians inspect the wreckage of a bus bombing in Baghdad, Iraq, Monday, Nov. 24, 2008.
Mourners carry the coffin of lawyer Khalaf Mohammed al-Jabouri at his funeral in Kirkuk, 180 miles north of Baghdad, Iraq on Monday, Nov. 24, 2008. The man was shot and killed on his way to work on Sunday, police said.