United Nations
The United Nations Charter was signed on the 26th of June 1945 by representatives of fifty nations in San Francisco. This document officially established the organization to maintain international peace and security after World War II. The League of Nations had failed to prevent aggression, as seen when Japan walked out of that body in 1933 rather than withdrawing from Manchuria. Haile Selassie I appealed to the League for help against Italy's invasion of Ethiopia in 1936, but no effective intervention occurred. Franklin Roosevelt coined the term United Nations during a meeting at the White House in December 1941. He wanted to describe the Allied countries fighting against the Axis powers. On New Year's Day 1942, twenty-six nations signed the Declaration by United Nations. By March 1945, twenty-one additional states had joined this declaration. The UN Conference on International Organization opened in San Francisco on the 25th of April 1945 with fifty governments present. The Charter came into force on the 24th of October 1945 at 20:07 UTC after ratification by five permanent Security Council members. Trygve Lie became the first elected secretary-general in February 1946. The General Assembly held its first session in London on the 10th of January 1946 with representatives from fifty-one nations.
The United Nations consists of six principal organs established by the Charter. Five operate today while the Trusteeship Council suspended operations on the 1st of November 1994 after Palau gained independence. The General Assembly serves as the primary deliberative body where all member states gather annually. Each nation holds one vote and decisions require either a simple majority or two-thirds majority for important questions. The Security Council maintains peace through binding resolutions that all members must carry out under Article 25. Fifteen states serve on this council including five permanent members with veto power over resolutions. China, France, Russia, the United Kingdom, and the United States hold these permanent seats. Ten non-permanent members serve two-year terms elected by the General Assembly. The Economic and Social Council coordinates global issues like health and development across subsidiary bodies. The International Court of Justice sits in The Hague to adjudicate disputes between nations. It is the only principal organ not located in New York City. The Secretariat carries out day-to-day duties under the leadership of the secretary-general. António Guterres of Portugal became the ninth secretary-general on the 1st of January 2017 replacing Ban Ki-moon. Six official languages are used in intergovernmental meetings: Arabic, Chinese, English, French, Russian, and Spanish.
The UN has carried out seventy-one peacekeeping operations since 1947 involving over eighty-eight thousand personnel from one hundred twenty-one nations. Blue Helmets wear distinctive blue helmets while deployed to enforce peace agreements. The largest mission currently operates in South Sudan with close to nineteen thousand uniformed personnel. The smallest operation monitors a ceasefire in Jammu and Kashmir using just one hundred thirteen civilians. Peacekeepers have been stationed in the Middle East since 1948 making it the longest-running active mission. A RAND Corporation study found success in two-thirds of these efforts compared to fifty percent for US cases. Critics point to failures including the Rwandan genocide in 1994 where indecision blocked intervention. The Srebrenica massacre also remains a stain on UN records due to lack of action. Scientists identified Nepalese peacekeepers as the source of the 2010s Haiti cholera outbreak killing more than eight thousand people. Sexual abuse allegations against peacekeepers occurred in missions across the Democratic Republic of Congo, Liberia, and Côte d'Ivoire. The UN Peacekeeping Forces received the Nobel Peace Prize in 1988 for their collective work. In 1956 the first peacekeeping force was established to end the Suez Crisis under Dag Hammarskjöld's leadership.
Eleanor Roosevelt chaired the committee that drafted the Universal Declaration of Human Rights adopted by the General Assembly in 1948. This document proclaimed basic civil political and economic rights common to all human beings without distinction. It became the basis for binding treaties like the International Covenant on Civil and Political Rights. The Convention on the Elimination of All Forms of Discrimination against Women followed in 1979. A Declaration on the Rights of Indigenous People passed in 2006 while LGBTQ+ rights gained recognition through resolution in 2011. Eight Millennium Development Goals were agreed upon by one hundred ninety-two member states in 2000 to be met by 2015. These goals included eradicating extreme poverty hunger and achieving universal primary education. The Sustainable Development Goals launched in 2015 succeeded the earlier framework with an associated financing called the Addis Ababa Action Agenda. The World Health Organization announced smallpox eradication was completed in 1980 after decades of effort. UNICEF was created in 1946 to aid European children before expanding its mission globally. The Food and Agriculture Organization promotes agricultural development and food security worldwide.
The UN budget for 2024 totaled three point five nine billion dollars excluding additional resources donated by members. Total expenses reached sixty-seven point four billion dollars in 2022 across forty-three United Nations entities. Assessed contributions are based on each nation's gross national income adjusted for external debt and low per capita income. The regular budget ceiling was reduced from twenty-five percent to twenty-two percent in December 2000 under US pressure. A minimum floor rate applies to least developed countries set at zero point zero zero one percent or thirty-one thousand dollars. Peacekeeping operations cost six point three eight billion dollars during the 2021, 2022 fiscal year supporting sixty-six thousand eight hundred thirty-nine personnel. Special programs like UNICEF rely on voluntary contributions from governments corporations and private individuals. In May 2025 only sixty-one countries paid their dues on time and in full triggering a financial crisis. The United States pays twenty-six point ninety-four percent of the peacekeeping budget while China contributes eighteen point sixty-eight percent. Delays in payments from major contributors have caused massive budget cuts threatening millions of lives. The US has maintained a law since 1994 limiting its payment to twenty-five percent despite being assessed at twenty-seven percent.
American President George W. Bush stated in February 2003 that free nations would not allow the UN to fade into history as an ineffective debating society. Critics argue the Security Council veto privileges are fundamentally undemocratic and cause inaction on genocides. Jacques Fomerand describes the most enduring divide as the North-South split between richer Northern nations and developing Southern nations. Southern nations favor a more empowered General Assembly while Northern nations prefer economic laissez-faire approaches. Indonesia became the first nation to attempt withdrawal from membership in 1965 during conflict with Malaysia over Security Council elections. It resumed membership in 1966 after forming a short-lived rival organization called CONEFO. The Office of Internal Oversight Services was established in 1994 to serve as an efficiency watchdog against corruption. Accusations arose regarding the Oil-for-Food Programme where billions of dollars in kickbacks were found involving many officials. Ronald Reagan withdrew US funding from UNESCO in 1984 over allegations of mismanagement followed by the United Kingdom and Singapore. The John Birch Society mounted nationwide campaigns opposing the UN during the 1960s claiming it was an instrument for communism.
Common questions
When was the United Nations Charter signed and by how many nations?
The United Nations Charter was signed on the 26th of June 1945 by representatives of fifty nations in San Francisco. This document officially established the organization to maintain international peace and security after World War II.
Who are the five permanent members of the Security Council within the United Nations?
China, France, Russia, the United Kingdom, and the United States hold these permanent seats with veto power over resolutions. Fifteen states serve on this council including ten non-permanent members who serve two-year terms elected by the General Assembly.
What is the largest current peacekeeping mission operated by the United Nations?
The largest mission currently operates in South Sudan with close to nineteen thousand uniformed personnel. The smallest operation monitors a ceasefire in Jammu and Kashmir using just one hundred thirteen civilians.
Which year did the United Nations adopt the Universal Declaration of Human Rights under Eleanor Roosevelt's chairmanship?
Eleanor Roosevelt chaired the committee that drafted the Universal Declaration of Human Rights adopted by the General Assembly in 1948. This document proclaimed basic civil political and economic rights common to all human beings without distinction.
How much was the total budget for United Nations entities in 2022?
Total expenses reached sixty-seven point four billion dollars in 2022 across forty-three United Nations entities. Peacekeeping operations cost six point three eight billion dollars during the 2021, 2022 fiscal year supporting sixty-six thousand eight hundred thirty-nine personnel.