Abstract

The United Nations Since its foundation in international relations has become a core system. From the United Nations restrictions on the use of force, peacekeeping and monitoring operations of the rapid expansion of the controversy surrounding the reform of the Security Council and international standards and guidelines for the four in terms of advocacy, the United Nations has played an irreplaceable role, and will remain in the international transformation of society play an important role. The United Nations has become one of the central institutions since its foundation. This study takes into account some important issues in appraising the role of the United Nations in international relations including: the UN's restriction on the use of force, the rapid expansion of UN peacekeeping and election-monitoring activities, the debates concerning the reform of the Security Council and the UN's promotion on international standards and norms. It reaches a conclusion that the United States has played an irreplaceable role and will still been so in the transformation of international society