AP Photo
A woman and a girl walks near a concrete wall which separates a Shiite and a Sunni area in the Dora neighborhood if southern Baghdad, Iraq, in this Sunday, June 22, 2008 file photo. A unilateral cease-fire by a feared Shiite militia, the deployment of additional 30,000 U.S. troops and the defection of Sunni insurgents to join the U.S. military in the fight against al-Qaida are often cited as major contributing factors to the present lull in violence in the Iraqi capital. But, in no small part, Baghdad owes much of its peace to the endless row after row of walls that have been used to protect anything in the city from neighborhoods, hospitals, outdoor markets, schools and banks to the hundreds of security checkpoints across the city.
