February 26 - An American businessman is admitted to the Vietnam France Hospital in Hanoi, Vietnam. WHO doctor Carlo Urbani report the unusual highly contagious disease to WHO. Both the businessman and Carlo Urbani die of SARS in March.
February 26 - Iraq disarmament crisis: U.S. President George W. Bush talks publicly about his vision of a post-invasion democracy in Iraq. Bush says it will be "an example" to other nations in Arabia.
March 1 - Iraq disarmament crisis: The United Arab Emirates calls for Iraqi president Saddam Hussein to step down to avoid war. The sentiment is later echoed by Kuwait.
March 6 - U.S. President George W. Bush holds a live, televised press conference on the latest developments in the War on Terrorism, the situation with North Korea and the disarmament standoff with Iraq.
March 11 - Iraq disarmament crisis: Iraqi fighters threaten two U.S. U-2 surveillance planes, flying missions for U.N. weapons inspectors, forcing them to abort their mission and return to base. Iraqi officials described the incident as a "technical mistake" by the U.N. inspectors. Ewen Buchanan, spokesman for UNMOVIC, said that Iraqi officials had been notified about the flight beforehand.
March 11 - Iraq disarmament crisis: According to Arab media, Saddam Hussein opens terrorist training camps in Iraq for Arab volunteers willing to carry out suicide bombings against U.S. forces if a U.S.-led attack took place.
March 12 - Iraq disarmament crisis: British prime minister Tony Blair proposes an amendment to the possible 18th U.N. resolution, which would call for Iraq to meet certain benchmarks to prove that it was disarming. The amendment is immediately rejected by France, who promises to veto any new resolution.
March 14 - U.S. Rep. James P. Moran Jr steps down as a regional Whip for the House Democrats for making what he called "insensitive" remarks about Jews pushing the nation into war with Iraq. At a March 3 anti-war rally in Reston, Virginia, Moran said, "If it were not for the strong support of the Jewish community for this war with Iraq, we would not be doing this."
March 16 - Iraq disarmament crisis: The leaders of the United States, Britain, Portugal and Spain meet at a summit in the Azores Islands. U.S. President Bush calls Monday, March 17th, the "moment of Truth", meaning that the "coalition of the willing" would make its final effort to extract a resolution from the U.N. Security Council that would give Iraq an ultimatum to disarm immediately or to be disarmed by force.
March 16 - Largest co-ordinated worldwide vigil as part of the global protests against war on Iraq.
March 17 - Iraq disarmament crisis: U.S. President George W. Bush gives an ultimatium: Iraqi leader Saddam Hussein and his sons must either leave Iraq, or face military action at a time of the U.S.'s choosing.
March 19 - Sen. Robert Byrd (D-W. Va.) gives a speech in the Senate, saying "I weep for my country" as he attests that America is discarding its image of a strong, benevolent peacekeeper.
March 22 - The United States and the United Kingdom begin their shock and awe campaign with a massive air strike on military targets in Baghdad using cruise missiles fired from US Navy warships, Royal Navy submarines and B-52 bombers; and laser guided missiles fired by Stealth Bombers.
March 29 - WHO doctor Carlo Urbani, who first identified SARS, dies of the disease.
April 9 - US forces seize control of Baghdad, apparently ending the regime of Saddam Hussein.
May 1 - George W. Bush landed on the aircraft carrier USS Abraham Lincoln, in a LockheedS-3 Viking, where he gave a speech announcing end of major combat in the Iraq war. Clearly visible in the background was a banner stating "Mission Accomplished". Bush's landing was criticized by opponents as overly theatrical and expensive. The banner, made by White House personnel (according to a CNN story: ) and placed there by the U.S. Navy, was criticized as premature.