20 years ago, the US Army and its allies invaded Iraq on the pretext that Baghdad had weapons of mass destruction. Operation Iraqi Freedom was launched to disarm Iraq of perceived WMD, and to end Saddam Hussein’s rule. However, Iraq had been found to have no biological, chemical or nuclear weapons. US troops captured Saddam in December 2003, and the war in Iraq dragged on until 2011. An estimated half a million people died in Iraq during that time. More deaths followed after the emergence of the Islamic State in the country – a direct result of the US occupation.