United Nations Observer Group in Central America (ONUCA)

UKUSA (The United Kingdom – United States of America Agreement)

United Nations Aouzou Strip Observer Group (UNASOG)

United Nations Iran-Iraq Military Observer Group (UNIIMOG)

United Nations Military Observer Group in India and Pakistan (UNMOGIP)

United Nations Mission in the Central African Republic (MINURCA)

United Nations Mission in the Central African Republic and Chad (MINURCAT)

United Nations Peace Building Support Office in the Central African Republic (BONUCA)

United Nations Disengagement Observer Force (UNDOF)

United Nations military observer mission

United Nations Observer Mission in Angola (MONUA)

United Nations Observer Mission in Bougainville (UNOMB)

United Nations Observer Mission in El Salvador (UNOSAL / фр. ONUSAL)

United Nations Observer Mission in Georgia (UNOMIG)

United Nations Observer Mission in Liberia (UNOMIL)

United Nations Observer Mission in Sierra Leone (UNOMSIL)

United Nations Observer Mission in South Africa (UNOMSA)

United Nations Observer Mission to Verify the Referendum in Eritrea (UNOVER)

United Nations Observer Mission Uganda-Rwanda (UNOMUR)

United Nations Civilian Police Support Group (UNPSG)

United Nations Observation Group in Lebanon (UNOGIL)

United Nations Transition Assistance Group (UNTAG)

forward observer (FO), forward observation officer; (artillery) observer / spotter

United States Central Command (USCENTCOM or CENTCOM)

African Union / United Nations Hybrid operation in Darfur (UNAMID)

Charter of the United Nations

Office of the United Nations Special Coordinator in the Occupied Territories (UNSCO)

United Nations (Political) Mission in Nepal (UNMIN)

United Nations (UN)

United Nations Advance Mission in Cambodia (UNAMIC)

United Nations Advance Mission in the Sudan (UNAMIS)

United Nations Angola Verification Mission (UNAVEM)

United Nations Assistance Mission for Iraq (UNAMI)