Dewo (Ph.D.), TennaWalelegn, Yodit2020-09-292023-11-182020-09-292023-11-182020-06http://etd.aau.edu.et/handle/12345678/22490The United Nations (UN) efforts towards the maintenance of international peace and security have been criticized by members, nonmember states, scholars, philosophers and diplomats. The organization’s peacekeeping and security missions are influenced by forces other than the Charter as well as the negotiation made on cases. As a result, many demanding occasions of peacekeeping missions of the United Nations have failed. In contradiction with the common goals of the Chart of the UN, during the past three decades, its failures were higher than its success. It has been more productive during the Cold War (1941-1991) than it is after that Cold War. This thesis aims to explain why the UN could not bring peace as it promised on its Charter. In this connection, it also discusses the contradiction between the interest of veto powers and the Charter. Furthermore, the demand for peacekeeping missions is not treated in accordance with the Charter. Based on this, the present research forwards a critique of the organization's peacekeeping mission from a moral perspective. With this, the thesis recommends Immanuel Kant’s arguments on perpetual peace as a solution to the pitfalls of the UN. Key Words: Charter, UN, Morality, Superpower, Perpetual Peace, Peacekeeping, Security.enCharter, UN, Morality, Superpower, Perpetual Peace, Peacekeeping, SecurityThesis