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The article below states the aims of an international organization.

Article 1

1. To maintain international peace and security, and to that end, to take effective collective measures for the prevention and removal of threats to the peace...

2. To develop friendly relations among nations based on respect for the principle of equal rights and self-determination of peoples, and to take other appropriate measures to strengthen universal peace...

Which international organization has these aims?

United Nations (UN)

North American Free Trade Agreement (NAFTA)

World Trade Organization (WTO)

North Atlantic Treaty Organization (NATO)