The United Nations officially came into existence on 24 October 1945, when the UN Charter was authorized by a majority of the 51 Member countries. The main purpose of the United Nations is to bring all nations of the world together to work for peace and development, based on the principles of justice, human dignity and the well being of all people. However, the UN peacekeepers have to face many problems in order to maintain world peace such as, non-agreeing members of Security Council, high maintenance cost, unwillingness of the members to intervene in another nations problem.
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