Wed Apr 21, 5:46 AM ET
Masked gunmen guard a street in the besieged Iraqi town of Falluja April 20, 2004. (Akram Saleh/Reuters)

Wed Apr 28, 6:54 AM ET
U.S. Marines from Gulf Company, a part of the 1st Marine Expeditionary Force, guard detained Iraqi men near the town of Falluja on April 27, 2004. The men were detained for helping wounded insurgents. (Oleg Popov/Reuters)

Fires light up the night sky as seen through a television night vision device as U.S. forces pounded sections of the Golan district in the Iraqi city of Falluja, April 27, 2004. U.S. aircraft and tanks pounded targets in the besieged Iraqi city of Falluja, just hours after an American deadline expired for rebels to hand over their heavy weapons, witnesses said. (Pool via Reuters)

Tue Apr 27,12:29 PM ET
U.S.marines from Gulf Company, 2/7, a part of the 1st Marine Expeditionary Force guard detained Iraqi men near the town of Falluja on April 27, 2004. The men were detained for helping wounded insurgents. REUTERS/Oleg Popov

Wed Apr 21, 6:38 AM ET
A television image shows U.S. troops running through a street in the town of Falluja during clashes on April 21, 2004. U.S. forces and Iraqi insurgents traded machine gun fire, mortars and grenades for four hours in Falluja early on Wednesday, killing six civilians and breaking a tentative cease-fire, residents said. REUTERS/Pool TV

Wed Apr 28,10:13 AM ET
U.S.marines from Gulf Company, 2/7, a part of the 1st Marine Expeditionary Force guard a wounded Iraqi insurgent after house-to-house search operation in a village near the town of Falluja on April 28, 2004.One Iraqi insurgent was killed and another one wounded during the operation. REUTERS/Oleg Popov

Tue Apr 27,11:43 AM ET
An insurgent holds up a poster advertising a purported reward of $15US million for the heads of either U.S. Defense Secretary Donald Rumsfeld (R), coalition forces commander Lieutenant-General Ricardo Sanchez or military spokesman Brigadier-General Mark Kimmitt in the besieged city of Falluja, April 27, 2004. There was no way to check the seriousness of the leaflet. REUTERS/Akram Saleh

Wed Apr 21, 8:47 AM ET
Residents of the besieged town of Falluja demonstrate in front of al-Sadia mosque in central Baghdad April 21, 2004, calling for the coalition forces to end their offensives in their hometown. U.S. forces and Iraqi insurgents traded machine gun fire, mortars and grenades for four hours in Falluja on Wednesday, killing six civilians and breaking a tentative cease-fire, residents said. REUTERS/Thaer al-Sudani

Wed Apr 28,10:06 AM ET
U.S.marines from the 1st Marine Expeditionary Force point their rifles during a house-to-house search operation in a village near the town of Falluja April 28, 2004. One Iraqi insurgent was killed and another one wounded during the operation. REUTERS/Oleg Popov

A video grab image shows smoke rising in the turbulent Iraqi town of Falluja, April 26, 2004. U.S. air strikes on Falluja and sharp skirmishes with guerrillas inside the besieged city on Monday threw doubt on a deal U.S. officials had hoped might end one of their biggest problems in Iraq. REUTERS/Pool via Reuters TV

Tue Apr 13,12:45 PM ET
A masked Iraqi insurgent holds up a rocket propelled grenade launcher near a burning U.S. Humvee vehicle in the embattled town of Falluja April 13, 2004. REUTERS/Mohammed Khodor

Thu Apr 29, 5:16 AM ET
U.S. marines from Gulf Company, 2/7, a part of the 1st Marine Expeditionary Force call to Iraqi women and children to leave the building during a house-to-house search operation in a village near the town of Falluja April 28, 2004. REUTERS/Oleg Popov

Thu Apr 29, 1:05 AM ET
U.S. marines from Gulf Company, 2/7, a part of the 1st Marine Expeditionary Force guard a wounded Iraqi insurgent after house-to-house search operation in a village near the town of Falluja on April 28, 2004. REUTERS/Oleg Popov