Russia also participates in some of the most important UN peacekeeping missions including the United Nations Mission in Sierra Leone; United Nations Iraq–Kuwait Observation Mission; United Nations Institute for Training and Research; United Nations Mission in Bosnia and Herzegovina; United Nations Operation in Côte d'Ivoire; United Nations Mission in Ethiopia and Eritrea; United Nations Mission of Observers in Prevlaka; United Nations Observer Mission in Georgia; United Nations Transitional Administration in East Timor; United Nations Truce Supervision Organization; United Nations Mission for the Referendum in Western Sahara; United Nations Organization Mission in the Democratic Republic of the Congo