keywords: insurgents troops baghdad iraqis combat
text: Fighting Intensifies in Sadr City U.S. troops Tuesday engaged in heavy combat with insurgents in the Sadr City section of Baghdad, an impoverished neighborhood that is a stronghold for forces loyal to rebel Shiite cleric Moqtada Sadr. One U.S. soldier was killed in the fighting and at least 25 Iraqis were dead, officials said.