In what has become almost a nightly ritual, soldiers from A Troop, 1st Squadron, 5th Cavalry Regiment, lined up their vehicles on a quiet side street in the sleepy town of Abu Ghuraib, Iraq, just before initiating a cordon-and-search mission March 17. This time, A Troop, part of the 1st Cavalry Division's 2nd Brigade Combat Team, Task Force 1st Armored Division, was part of the divisionwide Operation Iron Promise. Officials say the operation is being carried out on the streets of Baghdad to show the Iraqi people that coalition forces are committed to securing the region and are determined to...