Despite the surge, sectarian and other violence has forced over two million Iraqis to flee their homes for safer harbors inside Iraq, the Iraqi Red Crescent reports:

The number of Iraqis fleeing their homes has more than quadrupled since the U.S. troop buildup began in February, leaving 2.3 million Iraqis displaced and further dividing the country along sectarian lines, according to a new report from the Iraqi Red Crescent Society.

The figures, which measured the number of internally displaced people at the end of September, present a grim accounting of the humanitarian crisis unfolding as Shiite militias and Sunni insurgent groups drive civilians, usually from the opposite sect, out of their homes, neighborhoods and cities.

More than 83 percent of those displaced were women and children, and most children were younger than 12, the report found. Most lived in Baghdad. Many lack adequate health services, cannot transfer their children to new schools and cannot find jobs.

The Red Crescent explains how it's trying to help the displaced persons here.