Shia and Sunni Violence in Iraq

This data reports terror incidents by Shia and Sunni recorded for Iraq in the National Counter Terrorism Center's World Wide Incident Tracking Database. It covers incidents that were observed for the period 2004 up through March 2007. The Center cautions that there could be some incidents that have occurred in Iraq that are not in the data. Fatalities, wounded and hostages taken for each record are included in the data. The events in the database are those for which the perpetrator was known to be from the Shia tribe.

Source: http://wits.nctc.gov/