U.S. Army soldiers working with 7th Brigade, 2nd Division, Iraqi National Police Transition Team, discuss tactics for an upcoming mission in Baghdad, Iraq, Aug. 7, 2006. U.S. Air Force photo by Master Sgt. Jonathan F. Doti

U.S. Army Staff Sgt. Jose Colon, with 7th Brigade, 2nd Division, Iraqi National Police Transition Team, prepares for an early morning cordon in a suburb of Baghdad, Iraq, Aug. 7, 2006. U.S. Air Force photo by Master Sgt. Jonathan F. Doti

A U.S. Marine assists U.S. Army soldiers from 7th Brigade, 2nd Division, Iraqi National Police Transition Team, during a mission in Baghdad, Iraq, Aug. 7, 2006. U.S. Air Force photo by Master Sgt. Jonathan F. Doti

U.S. Army Lt. Col. Milton Peterson, working with the 7th Brigade, 2nd Division, Iraqi National Police Transition Team, tells fellow soldiers the problems with checkpoints in Baghdad, Iraq, Aug. 7, 2006. U.S. Air Force photo by Master Sgt. Jonathan F. Doti

U.S. Army soldiers with 7th Brigade, 2nd Division, Iraqi National Police Transition Team and Iraqi National Police officers repair a sandbag barrier at a checkpoint in Baghdad, Iraq, Aug. 7, 2006. U.S. Air Force photo by Master Sgt. Jonathan F. Doti

Small arms bullet casings are evidence of prior firefights at a checkpoint in Baghdad, Iraq, Aug. 7, 2006. U.S. Air Force photo by Master Sgt. Jonathan F. Doti