Established in 1945 following the devastation of World War II, the United Nations is an intergovernmental organization comprising 193 member states. It serves as a global platform for countries to collaborate on international law, security, economic development, social progress, and human rights. The UN operates through six principal organs, including the General Assembly and the Security Council, and oversees numerous specialized agencies like the World Health Organization (WHO) and the United Nations Children’s Fund (UNICEF).