The flag of the United Nations is the official banner of the world organisation founded after the Second World War. Adopted on 20 October 1947, it features the UN emblem — a polar azimuthal map of the world wreathed in olive branches — centred on a light blue field.
The flag of the European Union is the official symbol of the EU and, originally, of the Council of Europe. Adopted by the Council in 1955 and by the European Communities (later EU) in 1985, it shows twelve gold stars arranged in a circle on a blue field.
The flag of the North Atlantic Treaty Organization is the banner of the transatlantic military alliance founded in 1949. The flag itself was adopted on 14 October 1953, four years after the alliance came into being.
The flag of the African Union is the official banner of the continental body of African states, founded in 2002 as the successor to the Organisation of African Unity. The current flag, adopted in early 2010 after a continent-wide design competition, replaced a previous version that had been in use since the AU's creation.
The flag of the Arab League is the banner of the regional organisation founded in Cairo on 22 March 1945 to coordinate political, economic, and cultural cooperation between Arab states. The flag has been in use since the League's founding, with minor revisions to the calligraphy.
The flag of the Association of Southeast Asian Nations is the banner of the regional bloc founded in Bangkok on 8 August 1967. The current flag, with its rice-sheaves emblem, was adopted in 1997 to mark the organisation's 30th anniversary.
The flag of the Commonwealth of Nations is the banner of the political association of 56 member states, mostly former territories of the British Empire. The current flag was first flown at the Commonwealth Heads of Government Meeting in 1976, replacing earlier informal designs.
The flag of the Organization of American States is the banner of the continental body that links nearly every state in the Americas. Adopted in 1965, the flag bears the OAS emblem on a white field.
The flag of the Pacific Islands Forum is the banner of the regional intergovernmental organisation that links the independent and self-governing states of the Pacific. Founded in 1971 as the South Pacific Forum and renamed in 2000, the body brings together Australia, New Zealand, and sixteen Pacific island nations and territories.