Intergovernmental organisation in the context of "Organization of American States"

The League of Nations (LN or LoN; French: Société des Nations [sɔsjete de nɑsjɔ̃], SdN) was the first worldwide intergovernmental organisation whose principal mission was to maintain world peace. It was founded on 10 January 1920 by the Paris Peace Conference that ended the First World War. The main organisation ceased operations on 18 April 1946 when many of its components were relocated into the new United Nations (UN) which was created in the aftermath of the Second World War.

The League's primary goals were stated in its eponymous Covenant. They included preventing wars through collective security and disarmament and settling international disputes through negotiation and arbitration. Its other concerns included labour conditions, just treatment of native inhabitants, human and drug trafficking, the arms trade, global health, prisoners of war, and protection of minorities in Europe. The Covenant of the League of Nations was signed on 28 June 1919 as Part I of the Treaty of Versailles, and it became effective with the rest of the Treaty on 10 January 1920. Australia was granted the right to participate as an autonomous member nation, marking the start of Australian independence on the global stage. The first meeting of the Council of the League took place on 16 January 1920, and the first meeting of the Assembly of the League took place on 15 November 1920. In 1919, U.S. president Woodrow Wilson won the Nobel Peace Prize for his role as the leading architect of the League. Despite this, he was ultimately unsuccessful in getting his country to join it.

The Organisation of Islamic Cooperation (OIC; Arabic: منظمة التعاون الإسلامي, romanised: Munaẓẓamat at-Taʿāwun al-ʾIslāmī; French: Organisation de la coopération islamique), formerly the Organisation of the Islamic Conference, is an intergovernmental organisation founded in 1969. It consists of 57 member states, 48 of which are Muslim-majority. The organisation claims to be "the collective voice of the Muslim world" and works to "safeguard and protect the interests of the Muslim world in the spirit of promoting international peace and harmony".

OIC has permanent delegations to the United Nations and the European Union. Its official languages are Arabic, English, and French. It operates affiliated, specialised, and subsidiary organs within the framework of OIC Charter.

The Caribbean Community (abbreviated as CARICOM or CC) is an intergovernmental organisation that is a political and economic union of 15 member states (14 nation-states and one dependency) and five associated members throughout the Americas, the Caribbean and Atlantic Ocean. It has the primary objective to promote economic integration and cooperation among its members, ensure that the benefits of integration are equitably shared, and coordinate foreign policy. The organisation was established in 1973, by its four founding members signing the Treaty of Chaguaramas.

The secretariat headquarters is in Georgetown, Guyana. CARICOM has been granted the official United Nations General Assembly observer status.

The Organisation of African Unity (OAU; French: Organisation de l'unité africaine, OUA) was an African intergovernmental organisation established on 25 May 1963 in Addis Ababa, Ethiopia, with 33 signatory governments. Some of the key aims of the OAU were to encourage political and economic integration among member states, and to eradicate colonialism and neo-colonialism from the African continent.

The absence of an armed force like the United Nations peacekeepers left the organization with no means to enforce its decisions. It was also unwilling to become involved in the internal affairs of member nations, prompting some critics to claim the OAU as ineffective in taking decisive action. Recognising this, in September 1999 the OAU issued the Sirte Declaration, calling for a new body to take its place. On 9 July 2002, the OAU's Chairman, South African President Thabo Mbeki, formally dissolved the OAU and replaced it with the African Union (AU), its immediate successor, which upholds many of the founding principles of the OAU.

The Nordic Council is the official body for formal inter-parliamentary Nordic cooperation among the Nordic countries. Formed in 1952, it has 87 representatives from Denmark, Finland, Iceland, Norway, and Sweden as well as from the autonomous areas of the Faroe Islands, Greenland, and Åland. The representatives are members of parliament in their respective countries or areas and are elected by those parliaments. The Council holds ordinary sessions each year in October/November and usually one extra session per year with a specific theme. The council's official languages are Danish, Finnish, Icelandic, Norwegian, and Swedish, though it uses only the mutually intelligible Scandinavian languages—Danish, Norwegian, and Swedish—as its working languages. These three comprise the first language of around 80% of the region's population and are learned as a second or foreign language by the remaining 20%.

In 1971, the Nordic Council of Ministers, an intergovernmental forum, was established to complement the council. The Council and the Council of Ministers are involved in various forms of cooperation with neighbouring areas in Northern Europe, including the German state of Schleswig-Holstein, the Benelux countries and the Baltic states.

The Nordic Council of Ministers is an intergovernmental forum established after the Helsinki Treaty. The purpose of the Nordic Council of Ministers is to complement the Nordic Council and promote Nordic cooperation.

The European Centre for Medium-Range Weather Forecasts (ECMWF) is an independent intergovernmental organisation supported by most of the nations of Europe. It is based at three sites: Shinfield Park, Reading, United Kingdom; Bologna, Italy; and Bonn, Germany. It operates one of the largest supercomputer complexes in Europe and the world's largest archive of numerical weather prediction data.

The European University Institute (EUI) is an international postgraduate and post-doctoral research-intensive university and an intergovernmental organisation with juridical personality, established by its founding member states to contribute to cultural and scientific development in the social sciences, in a European perspective. Its main campus is located in the hills above Florence in Fiesole, Italy.

The EUI is funded by its 24 Contracting States, the European Union (Erasmus+), and its own revenue, drawn from competitive research funding, partnerships with public and private actors, and executive education.

The Head of the Commonwealth is the ceremonial leader who symbolises "the free association of independent member nations" of the Commonwealth of Nations, an intergovernmental organisation that currently comprises 56 sovereign states. There is no set term of office or term limit and the role itself has no constitutional relevance to any of the member states within the Commonwealth. The position has always been held by the monarch of the United Kingdom, and thus is currently held by King Charles III. Head of the Commonwealth is also a title of the monarch of each of the Commonwealth realms according to the Royal Style and Titles Act.

By 1949, what was then called the British Commonwealth was a group of eight countries, each having King George VI as monarch. India, however, desired to become a republic, but not to leave the Commonwealth by doing so. This was accommodated by the creation of the title Head of the Commonwealth for the King and India became a republic in 1950. Subsequently, during the reign of Queen Elizabeth II, other nations, including Pakistan, Sri Lanka, Ghana, and Singapore, also became republics, but, as members of the Commonwealth, recognised her as the organisation's head. Per agreement reached at the CHOGM in 2018, Charles III succeeded Elizabeth II as head of the Commonwealth upon her death on 8 September 2022.