on October 31, stating they would no longer cooperate with UNSCOM. Also noted was the numerous efforts to hinder UNSCOM officials, including prevention of photographing evidence and photocopying documents, as well as prevention of interviewing Iraqi personnel. Inspection teams were withdrawn before the Operation Desert Fox bombing campaign and did not return for four years. The United Nations no-fly zone enforced by the United States, United Kingdom and France—also legality disputed—became a location of constant exchange of fire since Iraqi Vice President Taha Yassin Ramadan instructed Iraqi military to attack all planes in the no-fly zone. A memo written by US Secretary of Defense Rumsfeld dated Nov 27, 2001 considers a US invasion of Iraq. One section of the memo questions "How start?", listing multiple possible justifications for a US-Iraq War, one scenario being "Dispute over WMD inspections—Start thinking now about inspection demands" In late 2002, after international pressure and more UN Resolutions, Iraq allowed inspection teams back into the country. In 2003, UNMOVIC was inspecting Iraq but were ordered out. There is no credible evidence of WMD production (see Duelfer Report) and no WMDs have been found to date after 1991 (See below and WMD in Iraq). George W. Bush has since admitted that "much of the intelligence turned out to be wrong". The United States offered intelligence from the Central Intelligence Agency and British MI5 to the United Nations Security Council suggesting that Iraq possessed weapons of mass destruction. The U.S. claimed that justification rested upon Iraq's violation of several U.N. Resolutions, most recently UN Security Council Resolution 1441. U.S. president George W. Bush claimed Iraq's WMDs posed a significant threat to the United States and its allies. An inspection team UNMOVIC, before completing its UN-mandate or completing its report was ordered out by the UN because the US-led invasion appeared imminent. Weapons of mass destruction In the past, Iraq had been supplied with chemical weapons and the technology to develop them by Germany, France, United States and the United Kingdom. Saddam used these weapons against Iranian forces in the Iran–Iraq War, and against Kurdish civilians in the Iraqi town of Halabja. In 1990 during the Gulf War Saddam had the opportunity to use these weapons, but chose not to. One of the noted reasons is the Iraqi forces' lack of up to date equipment to protect themselves from the effects, as well as the speed with which