*International Organisation* 👉 *The Commonwealth* Formed: 1931 Secretary General: Baroness (Scotland) Nations: 56 Headquarter: London 👉 *NATO (North Atlantic Treaty Organisation)* Formed: 4 April, 1949 (Signed in Washington) Headquarter: Brussels (Belgium) Secretary General: Mark Rutte Turkey & West Germany Joined in: 1999 NATO welcomed 7 new members in: 2004 Total Members: 32 👉 *European Union* Founded: 1st November, 1993 (Maastricht, Netherlands) Member: 27 UK left EU in: 2020 (Brixit) HQ: Brussels 👉 *Arab League* Formed: 22 March, 1945 Member Countries: 22 HQ: Cairo (Egypt) *Secretary Generals of Arab League* 1- Abdul Rehman Azam (1945-1952) Egypt 2- Abdul Khalik Houssania (1952-1972) Egypt 3- Muhammad Riad (1972-1979) Egypt 4- Cheddi Kalibi (1979-1990) Tunisia 5- Ahmad Asmet (1991-2001) Egypt 6- Abdel Maguid (2002-2011) Egypt 7- Amir Monssa (2011-2016) Egypt 8- Nabil Elarabay (2011-2016) Egypt 9- Ahmad Abdul Gheit (2016- To date) Egypt 👉 *Asian Development Bank* Formed: 1966 Regional Member: 68 Non Regional Member: 17 HQ: Manila President: Masatsugu Asakawa 👉 *Group of Eight (G-8)* Consist of 8 Wealthiest Nations USA, Japan, Germany, France, UK, Italy, Canada & Russia 👉 *Group Of 77 (G-77)* Economic group of Developing countries Formed by UNO in 1964 Countries: 135 👉 *Group of 15 (G-15)* Formed in 1990 HQ: Geneva 👉 *Group of Twenty (G-20)* Including in G-8 countries also Economic developing countries 👉 *Asia-Pacific Economic Co-operation (APEC)* Formed: 7 November, 1989 Member States: 21 HQ: Singapore Director: Dr. Rebecca Fatima Sta Maria 👉 *Group Of Seven (G-7)* 7 World's largest richest Nations First Summit held in Paris 👉 *South-East Asia Treaty Organisation (SEATO)* Established on 8 September, 1954 and Abolished on 30 June, 1977 HQ: Bangkok Pakistan Joined SEATO in May 1954 and Left in 1973 👉 *Central Treaty Organisation (CENTO)* Formed: 1955 Established through Baghdad Pact by Iran, Iraq, Pakistan, Turkey and UK. Iraq withdraw in 1959 It was dissolved in 1979