History of the United Nations $8.5 million donation from John D. Rockefeller, Jr. The UN headquarters officially opened on January 9, 1951, although construction was not formally completed until October 9, 1952. Under special agreement with the United States, the UN enjoys certain diplomatic privileges and immunities, but generally the laws of New York City, New York State, and the United States apply. While the principal headquarters of the UN remain in New York City, major agencies base themselves in Geneva, The Hague, Vienna, Nairobi and elsewhere. The basic constitutional makeup of the United Nations has changed little, though vastly increased membership has altered the
United Nations Operation in Côte d'Ivoire international community and reiterated that UNOCI could use "all necessary measures" in its mandate to protect civilians under imminent threat of attack. Heavy fighting broke out on 31 March 2011 as forces of Alassane Ouattara advanced on Abidjan from several directions. The United Nations peacekeepers took control of Abidjan's airport when Gbagbo's forces abandoned it and United Nations forces were also reported to be carrying out protective security operations in the city. The UN peacekeeping mission said its headquarters were fired on by Gbabgo's special forces on 31 March, and returned fire in an exchange lasting about three hours. UN