U.S. Troops Advance Toward Baghdad "Coalition forces have destroyed a key Republican Guard unit protecting Baghdad, U.S. Central Command said Wednesday, as American ground forces advanced toward the Iraqi capital on multiple fronts. Elements of the 3rd Squadron, 7th Cavalry -- the lead force of the U.S. Army's 3rd Infantry Division -- had moved to within 25 miles of Baghdad, said CNN's Walter Rodgers, who is embedded with the unit. That report was cleared by 7th Cavalry officials."