Answer:
Democracy
Democracy, based on the rule of law, is ultimately a means to achieve international peace and security, economic and social progress and development, and respect for human rights – the three pillars of the United Nations mission as set forth in the UN Charter. At the 2005 World Summit, all the world’s governments reaffirmed “that democracy is a universal value based on the freely expressed will of people to determine their own political, economic, social and cultural systems and their full participation in all aspects of their lives” and stressed “that democracy, development, and respect for all human rights and fundamental freedoms are interdependent and mutually reinforcing”. Democratic principles are woven throughout the normative fabric of the United Nations. The 2009 Guidance Note on Democracy of the Secretary-General sets out the United Nations framework for democracy based on universal principles, norms and standards and commits the Organization to principled, coherent, and consistent action in support of democracy.
Explanation: i dont know if that is 500 to 750 so ill typpe in another paragraph:
High Commissioner for Human Rights
The Office of the UN High Commissioner for Human Rights (OHCHR) has lead responsibility in the UN system for the promotion and protection of human rights. The office supports the human rights components of peacekeeping missions in several countries, and has many country and regional offices and centres. The High Commissioner for Human Rights regularly comments on human rights situations in the world and has the authority to investigate situations and issue reports on them.