In 2003, the U.S. and a multi-national coalition invaded and occupied Iraq to depose President Saddam Hussein, whom the Bush administration accused of having links to al-Qaeda and possessing weapons of mass destruction (WMDs) during the Iraq disarmament crisis. No stockpiles of WMDs were discovered besides about 500 degraded and abandoned chemical munitions leftover from the Iran–Iraq War of the 1980s, which the Iraq Survey Group deemed not militarily significant.[125] The U.S. Senate Select Committee on Intelligence found no substantial evidence of links between Iraq and al-Qaeda[126] and President Bush later admitted that "much of the intelligence turned out to be wrong".[127] Over 4,400 Americans and hundreds of thousands of Iraqi civilians died during the Iraq War, which officially ended on December 18, 2011.