1992 Boutros Boutros-Ghali succeeds Javier Pérez de Cuéllar as the Secretary General of the United Nations.
1992 The United Nations Security Council unanimously passes a resolution approving the creation of a peacekeeping force to ensure humanitarian assistance is distributed equitably in Somalia.
1992 George H. W. Bush orders 28,000 U.S. military forces to Somalia to assist in United Nations peacekeeping operations and humanitarian distribution.
1993 During a United Nations peacekeeping operation in Somalia (known as UNOSOM II), U.S. military forces engage in intense fighting with militia fighters loyal to warlord Mohamed Farrah Aidid in Mogadishu, Somalia. The incident prompts Bill Clinton to withdraw U.S. troops the following year.
1995 A United Nations tribunal on human rights violations in the Balkans issues indictments against 21 Bosnian Serb commanders for crimes against humanity.
1995 The United Nations peacekeeping mission in Somalia comes to an end.
1998 Jean Akayesu is found guilty of nine counts of genocide by a United Nations court. It is the first enforcement of a then 40 year old law banning genocide.
1999 United Nations peacekeeping forces enter Kosovo to maintain stability after the Yugoslav government agrees to withdraw its troops from the region.
1999 Tonga, Kiribati, Nauru and join the United Nations.
2000 Hans Blix is appointed Executive Chairman of UNMOVIC by United Nations Secretary General Kofi Annan.
2000 Tuvalu joins the United Nations.
2000 World leaders attend the "Millennium Summit" at the United Nations headquarters in New York to discuss the role of the UN in the twenty-first century.
2002 Switzerland becomes the 190th member of the United Nations.
2002 U.S. President George Bush addresses the United Nations General Assembly. He urges the member nations to confront Iraq on its violations of UN Security Council resolutions.
2002 Iraq agrees to the terms of United Nations Security Council Resolution 1441.
2002 United Nations weapons inspectors led by chief inspector Hans Blix arrive in Iraq.
2003 U.S. Secretary of State Colin Powell presents evidence of Saddam Hussein's alleged weapons of mass destruction to the United Nations Security Council.
2004 The United Nations begins an investigation into charges of corruption in its Oil for Food program in Iraq
