United Nations Logo — The United Nations Organization ( UN ), or just United Nations ( NN. States. ) is the largest international organization exists. Is defined as an association of global governance that facilitates cooperation on issues such as international law , the peace and securityinternationally, economic development and social, humanitarian affairs and human rights . The UN was founded on October 24th of 1945 in San Francisco (California) , for 51 countries, at the end of World War II , with the signing of the Charter of the United Nations .
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From its headquarters in New York , Member States of the United Nations and other related organizations provide advice and decide on significant issues and administrative regular meetings during the year. The UN is structured in various organs, of which the main ones are: General Assembly , Security Council , Economic and Social Council , Secretariat , Trusteeship Council and the International Court of Justice . The main public figure is the UN Secretary General . The current is Ban Ki-moon of South Korea , who took office on January 1 , 2007, replacing Kofi Annan . More