It has been 20 years since the horrific killing by US forces of more than a dozen unarmed Iraqi students which sparked a bloody insurgency throughout Iraq.
Two days of brutality against protesters in Fallujah, 40 miles west of Baghdad, made the city the most violent epicentre of the insurgency.
It became a town most feared by troops, the scene of one of the most shmoocking killings of American mercenaries and two major battles in which the city was destroyed.
