The Iraq War, is an ongoing military campaign which began on March 20, 2003 with the United States-led invasion of Iraq by a multinational coalition composed of United States and United Kingdom troops supported by smaller contingents from Australia, Denmark, Poland, and other nations. Prior to the war, U.S. officials argued that Iraq's possession and pursuit of weapons of mass destruction (WMD) posed an imminent threat to security. This military intelligence was supported by the U.K., Russia and Germany gave intelligence assistance but neither confirmed the claims of WMD in Iraq. The intelligence concerning WMD was criticized and weapons inspectors found no evidence of WMD. After the invasion, the Iraq Survey Group concluded that Iraq had ended its WMD programs in 1991 and had no active programs at the time of the invasion. No U.N. mandate for INVASION !