Answer:
The United Nations (U.N.), headquartered in New York, is an international organization of 193 member-states. It was founded in 1945 to prevent another world war.1
The U.N.'s founding charter mandates four ambitious purposes. It maintains international peace, which is a full-time job in itself. The U.N.'s other three missions help to achieve that overarching goal. It fosters friendly relations between its members, it solves international problems and promotes human rights, and it harmonizes its members' actions.
The U.N. also has a host of other initiatives:
Helps countries reduce hunger, disease, and illiteracy
Promotes economic development and sustainable development
Protects refugees
Provides disaster relief
Counters terrorism
Promotes nuclear non-proliferation
Clears landmines
Protects indigenous cultures
Upholds international law
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