A U.S. Army soldier stands guard outside the Red Crescent headquarters in Baghdad December 6, 2004. The Iraqi Red Crescent Society, which entered Falluja late last month to help with relief efforts in the shattered city, withdrew Sunday due to the dangers of operating, with rebels and U.S. forces still clashing in several areas. The Red Crescent was the only aid agency in Falluja. REUTERS/Mohanned Faisal RCS/JV