Iraqis chant anti-American slogans as charred bodies hang from a bridge over the Euphrates River in Fallujah, west of Baghdad, March 31.
Shannon Enos, left, wife of Sgt. Peter Enos, of South Dartmouth, Mass., sits next to her in-laws, Deborah and Gerald Enos, during Enos' funeral at Arlington National Cemetery in Arlington, Va. Enos died on April 9, 2004, in Bayji, Iraq when a rocket-propelled grenade struck his patrol vehicle.
A suspected Muqtada al-Sadr follower is detained at a U.S. Army base outside Najaf on April 16. The man was apprehended by troops on patrol near the city and brought in for interrogation.
A photo obtained by the Washington Post and released May 6 shows U.S. Army Spc. Lynndie England, of the 372nd Military Police Company, with a naked detainee at the Abu Ghraib prison in Baghdad on an unknown date.
This image made from a video posted May 11 on an Islamic militant Web site affiliated with al Qaeda shows a group of five men wearing headscarves and black ski masks standing over a bound man in an orange jumpsuit, identified as Nick Berg, an American contractor.
U.S. Army soldiers rush to evacuate an injured comrade in the center of Baghdad after explosions on May 25.
Raad Najim, right, sits on the floor of a hospital morgue and weeps next to the body of his brother, Mahammed Najim, after he was killed by a roadside bomb blast in the Baghdad district of Sadr City June 6.
The mother of Samah Hussein cries over his body, as she identifies him lying in a Baghdad morgue. He was killed when a suicide attacker detonated a car bomb outside the U.S. military's Camp Cuervo in Baghdad June 13.
Then-U.S. Administrator L. Paul Bremer, right, shows a document to Iraqi interim Prime Minister Ayad Allawi, center, and Iraqi Chief Justice Midhat al-Mahmoudi, left, transferring national sovereignty to Iraq at a ceremony in Baghdad on June 28.
Then-U.S. Administrator L. Paul Bremer bids farewell as he boards an Air Force plane at Baghdad International Airport for his flight out of Iraq on June 28.
In this image released by the U.S. military, former Iraqi President Saddam Hussein gestures in a courtroom at Camp Victory, a former Saddam Palace, on the outskirts of Baghdad on July 1.
Supporters of radical Shiite cleric Muqtada al-Sadr hoist a poster of al-Sadr at the ancient Imam Ali mosque, a revered Shiite holy site, after the U.S. military suspended operations against al-Sadr's fighters in the southern city of Najaf, in an Aug. 14 photo.
U.S. Army soldiers take cover in a fortified position in Najaf on Aug. 20.
A U.S. Army soldier uses a dummy to draw a sniper into view in Najaf on Aug. 20.
Workers check out a fire after saboteurs blew up a pipeline in al-Radgha, about 30 miles southwest of Basra, on Aug. 29.
Margaret Hassan, the kidnapped director of CARE International in Iraq, appears in an image made from television. The videotape of her was aired by the Arabic television station Al-Jazeera on Oct. 22.
A purple heart medal is taped to the chest of an unidentified American soldier while he was in the intensive care unit of the 31st Combat Support Hospital in the Green Zone of Baghdad on Nov. 7.
Insurgents, using small arms and mortars, launch an attack on U.S. forces in Fallujah on Nov. 8.
Army Nurse supervisor Patrick McAndrew tries to save the life of Army Spc. Travis S.Babbitt, 24, of Uvalde,Tex., 1st Battalion, 8th Cavalry Regiment, 1st Calvary Division, Ft. Hood, by doing CPR upon his arrival at a military hospital in Baghdad, Iraq Nov. 9. Spc Babbitt died of his wounds.