Seminar paper from the year 2022 in the subject Politics - Topic: Peace and Conflict, Security, grade: A, course: War and Peace, language: English, abstract: The League of Nations and subsequently the United Nations were major milestones in the history of global peace. The idea behind these institutions was modern and necessary. Thenceforth, the international community agreed on rules governing International Humanitarian Law and peace keeping strategies under the supervision of the United Nations. Given the magnitude of its mission, numerous expectations are laid on this international institution. However, the UN has proven to adopt a 'learning-on-the-go' stance when it comes to conflict resolution and peacekeeping. This paper gives a detailed analysis of what are deemed the 'best' and the 'worst' cases in the history of conflict resolution and peace building mission, namely United Nations Mission in Sierra Leone and United Nations Mission in Rwanda (UNAMIR). It equally analyses the determinant factors that led to both outcomes. This analysis concludes by questioning the ability of United Nations and its agencies to maintain global peace.