All past UN Peacekeeping Operations that have taken place since 1948 are appended continent wise:

Africa

• United Nations Angola Verification Mission I (UNAVEM I)
• United Nations Angola Verification Mission II (UNAVEM II)
• United Nations Angola Verification Mission III (UNAVEM III)
• United Nations Aouzou Strip Observer Group (UNASOG)
• United Nations Assistance Mission for Rwanda (UNAMIR)
• United Nations Mission in Ethiopia and Eritrea (UNMEE)
• United Nations Mission in Sierra Leone (UNAMSIL)
• United Nations Mission in the Central African Republic (MINURCA)
• United Nations Mission in the Central African Republic and Chad (MINURCAT)
• United Nations Observer Mission in Angola (MONUA)
• United Nations Observer Mission in Liberia (UNOMIL)
• United Nations Observer Mission in Sierra Leone (UNOMSIL)
• United Nations Observer Mission Uganda-Rwanda (UNOMUR)
• United Nations Operation in Burundi (ONUB)
• United Nations Operation in Côte d'Ivoire (MINUCI)
• United Nations Operation in Mozambique (ONUMOZ)
• United Nations Operation in Somalia I (UNOSOM I)
• United Nations Operation in Somalia II (UNOSOM II)
• United Nations Operation in the Congo (ONUC)
• United Nations Organization Mission in the Democratic Republic of the Congo (MONUC)
• United Nations Transition Assistance Group (UNTAG)
• UN Mission in Sudan (UNMIS)

 

Americas

• Mission of the Representative of the Secretary-General in the Dominican Republic (DOMREP)
• United Nations Civilian Police Mission in Haiti (MIPONUH)
• United Nations Mission in Haiti (UNMIH)
• United Nations Observer Group in Central America (ONUCA)
• United Nations Observer Mission in El Salvador (ONUSAL)
• United Nations Support Mission in Haiti (UNSMIH)
• United Nations Transition Mission in Haiti (UNTMIH)
• United Nations Verification Mission in Guatemala (MINUGUA)

 

Asiaand the Pacific

• United Nations Advance Mission in Cambodia (UNAMIC)
• United Nations Good Offices Mission in Afghanistan and Pakistan (UNGOMAP)
• United Nations India-Pakistan Observation Mission (UNIPOM)
• United Nations Mission of Observers in Tajikistan (UNMOT)
• United Nations Mission of Support in East Timor (UNMISET)
• United Nations Security Force in West New Guinea (UNSF)
• United Nations Transitional Administration in East Timor (UNTAET)
• United Nations Transitional Authority in Cambodia (UNTAC)
• UN Integrated Mission in Timor-Leste (UNMIT)

 

Europ

• United Nations Civilian Police Support Group (UNPSG)
• United Nations Confidence Restoration Operation in Croatia (UNCRO)
• United Nations Mission in Bosnia and Herzegovina (UNMIBH)
• United Nations Mission of Observers in Prevlaka (UNMOP)
• United Nations Observer Mission in Georgia (UNOMIG)
• United Nations Preventive Deployment Force (UNPREDEP)
• United Nations Protection Force (UNPROFOR)
• United Nations Transitional Administration for Eastern Slavonia, Baranja and Western Sirmium (UNTAES)

 

Middle East

• United Nations Emergency Force I (UNEF I)
• United Nations Emergency Force II (UNEF II)
• United Nations Iran-Iraq Military Observer Group (UNIIMOG)
• United Nations Iraq-Kuwait Observation Mission (UNIKOM)
• United Nations Observation Group in Lebanon (UNOGIL)
• United Nations Yemen Observation Mission (UNYOM)
• UN Supervision Mission in Syria (UNSMIS)