1 million Iraqis and 4,486 US service members killed. Another is the destabilization of the region, perpetuated by ISIS’ rise. The US, the UK and their allies went to war on the premise that Saddam had weapons of mass destruction, and that he had cooperated with al-Qaeda. As the 2004 Duelfer report to Congress revealed, there were no WMDs. It had all been fabricated.