The United Nations (UN) is an international organization (founded in 1945) whose stated aims are facilitating cooperation in international law, international security, economic development, social progress, human rights, and the achieving of world peace. Many members of the United Nations have sent personnel to Atlantis. (SG1: "The Torment of Tantalus")
UN have much influence over the Stargate Program, since UN is in lead of any extra terrestrial diplomacy.
- UN official website