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U.S. Department of State

Diplomacy in Action

IO's Diplomatic Missions


IO and its diplomatic missions in New York, Geneva, Vienna, Rome, Paris, Montreal, and Nairobi, actively promote those interests, in part by advocating for more effective, transparent, accountable, and efficient international organizations.

USUN New York
Date: 11/22/2010 Description: United States Mission to the United Nations in New York © USUN ImageThe U.S. Mission to the United Nations (USUN) serves as the United States’ delegation to the United Nations. USUN is responsible for carrying out the nation’s participation in the world body. In 1947 the United States Mission was created by an act of Congress to assist the President and the Department of State in conducting United States policy at the United Nations. Since that time, USUN has served a vital role as the Department of State’s UN branch. Today, USUN has approximately 150 people on staff who serve to represent the United States’ political, economic and social, legal, military, public diplomacy, and management interests at the United Nations. The United States Mission to the United Nations is located at 799 United Nations Plaza (between E. 44th and E. 45th on First Ave) across the street from United Nations Headquarters. Website

USUN New York

USUN – Geneva
Date: 04/27/2011 Location: USUN Geneva Description: U.S. Mission Geneva. © UN ImageThe U.S. Mission to the United Nations and other International Organizations in Geneva works with a host of agencies and organizations to advance U.S. national interests. There are more than 100 countries that also maintain permanent missions to the UN in Geneva, and among the many international organizations headquartered in Geneva are the World Health Organization, the World Trade Organization, and the World Intellectual Property Organization. Geneva is also the seat of the UN Human Rights Council. U.S. mission staff, together with delegates from Washington, are involved in some 300 Geneva-based conferences a year, promoting U.S. policy and representing U.S. interests. Website

USUN Geneva

USUN Vienna
Date: 04/27/2011 Location: Vienna, Austria Description: U.S. Mission Vienna. © UN ImageThe United States Mission to International Organizations in Vienna (UNVIE) works with seven major organizations of the United Nations system based in Vienna: the International Atomic Energy Agency; the UN Office on Drugs and Crime; the Preparatory Commission of the Comprehensive Test Ban Treaty Organization; the UN Office of Outer Space Affairs; the Wassenaar Arrangement; the UN Commission on International Trade Law; and the UN Industrial Development Organization, of which the U.S. is not a member. UNVIE also covers the International Institute for Applied Systems Analysis in Laxenburg, Austria. UNVIE's mission is to conduct effective multilateral diplomacy with International Organizations in Vienna to advance President Obama's commitment to design and implement global approaches to reduce global threats and seize global opportunities. Website

USUN Vienna

USUN – Rome
Date: 04/27/2011 Location: Rome, Italy Description: Little girl standing next to food supplies. © USUN ImageRome, as headquarters of the three principal organizations dedicated to food and agriculture, is at the center of international efforts to promote sustainable development and combat world hunger. The U.S. mission in Rome serves as a link between the Rome-based international organizations and the United States Government. With staff representing the Department of State, Agriculture, Agency for International Development, the U.S. Mission works to advance UN efforts in the areas of emergency food aid, food safety standards, agriculture, fisheries, forests, and financing for rural development. Website

USUN Rome

Date: 02/28/2011 Location: Geneva, Switzerland Description: Secretary Clinton speaks at a press conference at the United Nations Office at Geneva, Switzerland.  - State Dept Image

USUN – Paris
The U.S. Mission to UNESCO is proud to be a part of the President's vision to advance human rights, tolerance and learning throughout the world. We are working to meet these challenges and are putting forward our best diplomatic efforts to advance the President’s priorities and to help create a brighter and better future for people around the world. Ambassador David T. Killion was named by President Barack Obama as Permanent Representative of the United States to the UNESCO and holds the rank of Ambassador and Permanent Delegate. He was sworn in on August 12, 2009. Website

USUN UNESCO

USUN – Montreal
Date: 04/27/2011 Location: USUN Montreal Description: Photo of airplane hanging at 2010 ICAO Triennial Assembly. - State Dept ImageThe U.S. Mission to the International Civil Aviation Organization (ICAO) works closely with the organization to reduce the number of international civil aviation accidents and fatalities through implementation of ICAO safety standards and recommended practices; increase transparency among member states by promoting the sharing of security audit results; seek to increase the number of member states using machine-readable passports and biometric passports to meet April 2010 deadline; and develop an environmental auditing and reporting process to achieve standardization of environmental protection among member state aircraft fleets. Headquartered in Montreal, the International Civil Aviation Organization (ICAO) is a UN specialized agency which promotes and develops standards and recommended practices for the safety, security and environmental sustainability of international civil aviation. Founded in 1947 under the Chicago Convention, ICAO works in cooperation with its 190 Member States, including the United States. Website

USUN – Nairobi
Date: 04/27/2011 Location: USUN Nairobi Description: UNEP logo. © UN ImageThe United States Permanent Mission to the UN Environment Programme (UNEP) and UN Human Settlements Programme (UN-HABITAT) works with the secretariats of these two organizations and with the representatives of other member states in Nairobi to cooperatively advance the U.S. objective of protecting the environment while reducing poverty and promoting sustainable economic growth; as well as helping find sustainable solutions to the phenomenon of rapid urbanization. The Mission carries out this work through participation in the Committees of Permanent Representatives of UNEP and HABITAT, through informal consultation, and by serving as a link between these two Nairobi-based UN programs and the various parts of the U.S. Government that engage with them. In addition, the Mission also contributes to the U.S. Government’s efforts to improve the overall efficiency and effectiveness of the UN through these two programs. Website


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