this chart from Data Pointed should be an eye opener.
Each pixel represents a death: the blue = US military, green = Iraqi military, orange = Iraq civilian, and the grey = what we call bad guys. The chart on the left is by total numbers and the chart on the right is by time. This chart does not include people who have left – presumably almost anybody who could – stripping Iraq of a lot of intellectuals and professionals
Iraq was not our finest hour.