Probably about as many as the French, Belgians, Dutch, and Italians that we created as enemies when their (much more numerous) parents or kids were killed by our (much less accurate) aerial bombing in World War II, or got caught in the middle of (much more vicious and destructive) ground combat in that war.

As we saw at the D-Day ceremonies last week, the Europeans have apparently gotten over the unintentional deaths of civilians we caused while liberating them from fascist butchers and setting them up for 60 years of uninterrupted peace and prosperity. Maybe the Iraqis will cut us the same kind of slack.