Acronym | Mission name | Start date | Closing date |
UNTSO | United Nations Truce Supervision Organization | May 1948 | Present |
UNMOGIP | United Nations Military Observer Group in India and Pakistan | January 1949 | Present |
UNEF I | First United Nations Emergency Force | November 1956 | June 1967 |
UNOGIL | United Nations Observation Group in Lebanon | June 1958 | December 1958 |
ONUC | United Nations Operation in the Congo | July 1960 | June 1964 |
UNSF | United Nations Security Force in West New Guinea | October 1962 | April 1963 |
UNYOM | United Nations Yemen Observation Mission | July 1963 | September 1964 |
UNFICYP | United Nations Peacekeeping Force in Cyprus | March 1964 | Present |
DOMREP | Mission of the Representative of the Secretary-General in the Dominican Republic | May 1965 | October 1966 |
UNIPOM | United Nations India-Pakistan Observation Mission | September 1965 | March 1966 |
UNEF II | Second United Nations Emergency Force | October 1973 | July 1979 |
UNDOF | United Nations Disengagement Observer Force | June 1974 | Present |
UNIFIL | United Nations Interim Force in Lebanon | March 1978 | Present |
UNGOMAP | United Nations Good Offices Mission in Afghanistan and Pakistan | May 1988 | March 1990 |
UNIIMOG | United Nations Iran-Iraq Military Observer Group | August 1988 | February 1991 |
UNAVEM I | United Nations Angola Verification Mission I | January 1989 | June 1991 |
UNTAG | United Nations Transition Assistance Group | April 1989 | March 1990 |
ONUCA | United Nations Observer Group in Central America | November 1989 | January 1992 |
UNIKOM | United Nations Iraq-Kuwait Observation Mission | April 1991 | October 2003 |
MINURSO | United Nations Mission for the Referendum in Western Sahara | April 1991 | present |
UNAVEM II | United Nations Angola Verification Mission II | June 1991 | February 1995 |
ONUSAL | United Nations Observer Mission in El Salvador | July 1991 | April 1995 |
UNAMIC | United Nations Advance Mission in Cambodia | October 1991 | March 1992 |
UNPROFOR | United Nations Protection Force | February 1992 | March 1995 |
UNTAC | United Nations Transitional Authority in Cambodia | March 1992 | September 1993 |
UNOSOM I | United Nations Operation in Somalia I | April 1992 | March 1993 |
ONUMOZ | United Nations Operation in Mozambique | December 1992 | December 1994 |
UNOSOM II | United Nations Operation in Somalia II | March 1993 | March 1995 |
UNOMUR | United Nations Observer Mission Uganda-Rwanda | June 1993 | September 1994 |
UNOMIG | United Nations Observer Mission in Georgia | August 1993 | June 2009 |
UNOMIL | United Nations Observer Mission in Liberia | September 1993 | September 1997 |
UNMIH | United Nations Mission in Haiti | September 1993 | June 1996 |
UNAMIR | United Nations Assistance Mission for Rwanda | October 1993 | March 1996 |
UNASOG | United Nations Aouzou Strip Observer Group | May 1994 | June 1994 |
UNMOT | United Nations Mission of Observers in Tajikistan | December 1994 | May 2000 |
UNAVEM III | United Nations Angola Verification Mission III | February 1995 | June 1997 |
UNCRO | United Nations Confidence Restoration Operation in Croatia | May 1995 | January 1996 |
UNPREDEP | United Nations Preventive Deployment Force | March 1995 | February 1999 |
UNMIBH | United Nations Mission in Bosnia and Herzegovina | December 1995 | December 2002 |
UNTAES | United Nations Transitional Administration for Eastern Slavonia, Baranja and Western Sirmium | January 1996 | January 1998 |
UNMOP | United Nations Mission of Observers in Prevlaka | January 1996 | December 2002 |
UNSMIH | United Nations Support Mission in Haiti | July 1996 | July 1997 |
MINUGUA | United Nations Verification Mission in Guatemala | January 1997 | May 1997 |
MONUA | United Nations Observer Mission in Angola | June 1997 | February 1999 |
UNTMIH | United Nations Transition Mission in Haiti | August 1997 | December 1997 |
MIPONUH | United Nations Civilian Police Mission in Haiti | December 1997 | March 2000 |
| UN Civilian Police Support Group | January 1998 | October 1998 |
MINURCA | United Nations Mission in the Central African Republic | April 1998 | February 2000 |
UNOMSIL | United Nations Observer Mission in Sierra Leone | July 1998 | October 1999 |
UNMIK | United Nations Interim Administration Mission in Kosovo | June 1999 | Present |
UNAMSIL | United Nations Mission in Sierra Leone | October 1999 | December 2005 |
UNTAET | United Nations Transitional Administration in East Timor | October 1999 | May 2002 |
MONUC | United Nations Organization Mission in the Democratic Republic of the Congo | November 1999 | Present |
UNMEE | United Nations Mission in Ethiopia and Eritrea | July 2000 | July 2008 |
UNMISET | United Nations Mission of Support in East Timor | May 2002 | May 2005 |
UNMIL | United Nations Mission in Liberia | September 2003 | Present |
UNOCI | United Nations Operation in Côte d'Ivoire | April 2004 | Present |
MINUSTAH | United Nations Stabilization Mission in Haiti | June 2004 | Present |
ONUB | United Nations Operation in Burundi | June 2004 | December 2006 |
UNMIS | United Nations Mission in the Sudan | March 2005 | Present |
UNMIT | United Nations Integrated Mission in Timor-Leste | August 2006 | Present |
UNAMID | African Union-United Nations Hybrid Operation in Darfur | July 2007 | Present |
MINURCAT | United Nations Mission in the Central African Republic and Chad | September 2007 | Present |