Central Treaty Organization (CENTO)
15 Apr 1955 Middle East Treaty Organization (Baghdad Pact)
19 Aug 1959 Central Treaty Organization
26 Sep 1979 dissolved
Secretaries-general
1955 - 31 Dec 1958 Awni Khalidy
(Iraq)
1 Jan 1959 - 1961 M.O.A. Baig
(Pakistan) (b. 1904)
1962 - 1967 Abbas Ali Khalatbari
(Iran) (
b. 1912 - d. 1979)
1967 - 1 Feb 1972 Turgut Menemencioglu
(Turkey)
1 Feb 1972 - Jan 1975 Nassir Assar
(Iran)
Jan 1975 - 1 Aug 1977 Ümit Haluk Bayülken
(Turkey) (b. 1921)
31 Mar 1978 - 1979 Kamuran Gürün
(Turkey) (b. 1924)
CENTO membership
15 Apr 1955 Iraq1,
Turkey, United Kingdom
23 Sep 1955 Pakistan2
23 Oct 1955 Iran3
1Withdrew 24 Mar 1959. 2Withdrew 12 Mar 1979. 3Withdrew 13 Mar 1979.