United Nations Truce Supervision Organization (UNTSO)

Organisme des Nations Unies chargé de la surveillance de la trève (ONUST)

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Contact Details

URL: https://untso.unmissions.org/
URL: https://peacekeeping.un.org/en/mission/untso

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Established by the E-XE3376 - United Nations Security Council (UNSC), within F-XF1000 - United Nations System, in the framework of the A-XA3375 - United Nations (UN). In 1949 its military observers (UNMOs) remained to supervise the Armistice Agreements between Israel and its Arab neighbours and have been for many years the main basis of the uneasy truce in the whole area.

The body of staff officers and its communications system were instrumental in setting up: the first H-XH5763 - United Nations Emergency Force (UNEF) - UNEF I - at short notice during the time of Suez crisis; U-XU9323 - United Nations Operation in the Congo (Congo, Congo DR) in 1960; the observer group in Lebanon during the crisis of 1958; the United Nations Yemen observer group in 1963; UNEF II in Sinai in 1973; UNDOF in 1974; UNIFIL in 1978; U-XF1241 - United Nations Good Offices Mission in Afghanistan and Pakistan (UNGOMAP) - now replaced by the Office of the Secretary-General in Afghanistan and Pakistan (OSGAP) - in 1988; U-XF0686 - United Nations Iran-Iraq Military Observer Group (UNIIMOG) in 1988 (UNTSO had a small number of Observers attached to UMIIMOG and had observers posted in Baghdad (Iraq) and Teheran (Iran Islamic Rep), during the period 1984-1988); U-XF2271 - United Nations Iraq-Kuwait Observation Mission (UNIKOM) (1991-2003).


Observe and report on the unconditional ceasefire ordered by the UN Security Council in 1948 and assist the parties in the implementation of the agreements of 1949 between Israel and 4 neighbouring Arab countries.


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Head of the Mission is the Chief of Staff. He is assisted by a body of 3 staff elements: Advisory staff, comprising Senior Adviser and Senior Legal Adviser; Military staff, comprising Deputy Chief of Staff, Chief Joint Operations Centre, Chief Military Personnel Officer, Chief Plans Officer, Chiefs of Field Stations, Liaison Officers, and observers assigned to operations or observation duties; Administrative staff, comprising Chief Administrative Officer, Senior Administrative Officer, Field Service Officers and other staff, recruited internationally and locally.

Operates from 7 duty stations in the 5 countries of the mission area:

  • Jerusalem - Headquarters Government House and Mixed Armistice Commission (MAC) House;
  • Beirut (Lebanon) - United Nations Liaison Office in Beirut (UNLOB);
  • Naqoura - Headquarters Observer Group Lebanon (OGL).
  • Camp Faouar (Golan Heights) - Headquarters Observer Group Golan (OGG);
  • Damascus (Syrian AR) - Observer Group Golan-Damascus (OGG-D) and Observer Detachment Damascus (ODD);
  • Tiberias - Headquarters Observer Group Golan-Tiberias (OGG-T);
  • Ismailia - Liaison Office Cairo (LOC).

Also maintains 3 Patrol Bases in southern Lebanon and 11 Observation Posts on the Golan, and conducts regular patrols in southern Lebanon, Golan and Sinai.


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Annual Budget

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Relations with Inter-Governmental Organizations

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Type I Classification

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Type II Classification

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Subjects *

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UN Sustainable Development Goals **

GOAL 16: Peace and Justice Strong Institutions



Last News


* Subject classification is derived from the organization names and aims.
** UN SDGs are linked to the subject classification.

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