The United Nations in Congo (ONUC), the first large-scale mission since the creation of the UN, was significant for the great responsibilities it had to assume , the scale of the operation, the unusual use of force and his inability to remain impartial. Indeed, due to the growing challenges of the operation, ONUC, which began as a peacekeeping mission, peaceful by nature, transformed into a peace enforcement mission that allowed the use of force to prevent the occurrence of a civil war (Fargo, 2006 ). Because of its complex character, the following brief account of the crisis in Congo between 1960 and 1964 will be useful in judging the mission's mandate, its changing priorities, and its specific limitations within a rigid bipolar context. Congo's independence from Belgium in 1960 proved to be a hasty and chaotic transition process from colony to independent Democratic Republic of the Congo. In fact, “not adequately prepared, Congolese independence led directly to the mutiny of the Congolese army” (McDonald, year). Compounding the mess, the mineral-rich area of ​​Katanga was declared independent by Moise Tshombe, exacerbating the situation and expanding the already heavy responsibility of the UN mandate in the region. In response to the tumultuous situation, Belgium intervened militarily, leading the The Congolese government will request UN military assistance “to protect the national territory of Congo from external aggression”. At the height of the Cold War, Resolution 143 was adopted in a rare moment of consensus among the superpowers. Two days after the request, contingents supplied by numerous countries including Asian and African began to arrive in the Democratic Republic of Congo... halfway through the document... The relief mission in Kosovo was established in response to the Kosovo war, a conflict between Yugoslavia (Serbia and Montenegro), which controlled Kosovo, and the Kosvo Albanian rebel group. The war in Kosovo saw serious human rights violations, “excessive and indiscriminate use of force by Serbian security forces and the Yugoslav army” (UNCR). In response to the atrocities, the international community had to provide an interim system of governance for Kosovo, “Without such a government, the chaotic situation would present a continuing threat of growing regional violence and instability, as well as a serious humanitarian crisis. (Matheson, ANNO) “ This is how UNMIK was founded. This mission was an unprecedented case of global governance as the Security Council gave UNMIK authority over the territory and people of Kosovo. (website of the United Nations).Works CitedUnited Nations website