April 3, 1991 – The United Nations passes Security Council Resolution 687.
April 6, 1991 – Iraq accepts SCR 687.
April 18, 1991 – Under the terms of SCR 687, Iraq gives a detailed account of its weapons inventory and denies it has a biological weapons program.
June 9, 1991 – UNSCOM begins its first inspection looking for chemical weapons.
June 23-28, 1991 – Iraqis fire warning shots at inspectors to prevent them from intercepting vehicles suspected of carrying nuclear equipment.
June 30, 1991 – UNSCOM begins its first missile inspection.
August 2, 1991 – Iraq admits to biological weapons research for “defensive purposes” only.
September 6, 1991 – Iraq blocks the use of helicopters by UNSCOM teams.
September 21-30, 1991 – IAEA inspectors discover documents relating to Iraq’s nuclear weapons program. Iraqi officials prevent the inspectors from leaving the site for four days.
March 19, 1992 – Iraq declares that it once possessed 89 missiles and chemical weapons, but destroyed them in the summer of 1991. This unilateral destruction of weapons is a violation of SCR 687.
June 1992 – Iraq delivers its first “Full, Final and Complete Disclosure” on its chemical weapons programs.
July 1992 – UNSCOM destroys some Iraqi chemical weapons and production facilities.
July 6-29, 1992 – Inspectors are prevented from searching the Ministry of Agriculture by Iraqi officials. They stage a 17-day sit-in.
July 5, 1993 – UNSCOM leaves Iraq.
November 26, 1993 – Iraq accepts the terms of SCR 715.
June 1994 – UNSCOM destroys material and equipment relating to chemical weapons production.
March 1995 – Iraq releases its second “Full, Final and Complete Disclosure” of biological and chemical weapons programs.
July 1, 1995 – Iraq admits the existence of its biological weapons program.
August 1995 – Iraq releases the third “Full, Final and Complete Disclosure” relating to its biological weapons programs.
November 1995 – Iraq delivers its second disclosure report on its missile programs.
May 1996 – Al-Hakam, a facility used to produce biological weapons agents, is destroyed.
June 1996 – Iraq releases a revised third “Full, Final and Complete Disclosure” on its biological weapons programs.
September 25, 1997 – During an inspection of a food laboratory, inspectors seize suspicious documents concerning bacteria and chemicals. The documents originate from the Iraqi Special Security Office. UNSCOM is prevented from inspecting SSO’s headquarters.
August 5, 1998 – Iraq decides to suspend cooperation with UNSCOM until its demands for an end to the embargo and a reorganization of UNSCOM are met.
October 31, 1998 – Iraq stops all UNSCOM inspections.
November 18, 1998 – Inspectors return to Iraq.
December 1, 1998 – Iraq halts cooperation with inspectors.
December 15, 1998 – Chief weapons inspector Richard Butler delivers a report to the UN Security Council which details Iraq’s lack of cooperation on inspections.
December 16, 1998 – Weapons inspectors leave Iraq.
September 16, 2002 – Iraq agrees unconditionally to the return of inspectors.
September 19, 2002 – Iraqi Foreign Minister Naji Sabri delivers a letter to the United Nations from Hussein stating that Iraq has no chemical, nuclear or biological weapons.
October 1, 2002 – The UN and Iraq agree on terms they say are consistent with existing UN resolutions. The United States threatens to veto unless a US resolution is approved that would allow military action for non-compliance by Iraq.
November 27, 2002 – Inspections resume in Iraq.
December 7, 2002 – Iraq submits a 12,000-page report on its WMD programs.
January 16, 2003 – Inspectors discover 12 chemical warheads, 11 of them empty, at the Ukhaider ammunition storage area.
February 14, 2003 – Blix and ElBaradei brief the UN Security Council. Blix reports that the inspectors have not yet found any weapons of mass destruction in Iraq. Blix also reports that Iraq is in violation of UN resolutions concerning its Al Samoud 2 missile program.
February 19, 2003 – Inspectors visit a factory northwest of Baghdad and tag 32 Al Samoud 2 missiles.
February 27, 2003 – Iraq agrees to destroy the country’s Al Samoud 2 missile stock. However, the letter doesn’t specify a date that the missile destruction will begin.
March 18, 2003 – Inspectors withdraw from Iraq.
October 2, 2003 – David Kay, who heads the US search for weapons of mass destruction, reports to congressional intelligence committees that the Iraq Survey Group has found no such weapons in Iraq. Kay says he will need six to nine months to conclude his work.
December 2005 – US inspectors end their search for weapons of mass destruction.