From Time Magazine

The incident seemed like so many others from this war, the kind of tragedy that has become numbingly routine amid the daily reports of violence in Iraq. On the morning of Nov. 19, 2005, a roadside bomb struck a humvee carrying Marines from Kilo Company, 3rd Battalion, 1st Marines, on a road near Haditha, a restive town in western Iraq. The bomb killed Lance Corporal Miguel (T.J.) Terrazas, 20, from El Paso, Texas. The next day a Marine communiqu’ from Camp Blue Diamond in Ramadi reported that Terrazas and 15 Iraqi civilians were killed by the blast and that “gunmen attacked the convoy with small-arms fire,” prompting the Marines to return fire, killing eight insurgents and wounding one other…..

But the details of what happened that morning in Haditha are more disturbing, disputed and horrific than the military initially reported. According to eyewitnesses and local officials interviewed over the past 10 weeks, the civilians who died in Haditha on Nov. 19 were killed not by a roadside bomb but by the Marines themselves, who went on a rampage in the village after the attack, killing 15 unarmed Iraqis in their homes, including seven women and three children. Human-rights activists say that if the accusations are true, the incident ranks as the worst case of deliberate killing of Iraqi civilians by U.S. service members since the war began.

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For another reminder of what happens during an ‘insurgency’ see this entry in Wikipedia

For the view from the back of a ‘private contractors‘ vehicle watch this video