| U.S. troops encircled the Iraqi city of Najaf on Sunday, blocking roads into town and preparing to go door to door to root out paramilitary supporters of Iraqi President Saddam Hussein. "This is our type of fight," said Command Sgt. Maj. Marvin Hill, of the 101st Airborne Division. "This is probably the most dangerous part of combat and that's urban. Sometimes you don't find out who the enemy is until they're shooting at you." Najaf, about 100 miles south of Baghdad, is a key stepping stone to the capital, but moving into the Shiite holy city could be a dangerous operation. On Saturday, a suicide bomb attack killed four U.S. soldiers at a checkpoint near town, and Baghdad pledged more such attacks. |