Lineage. Constituted 9th Transport Squadron on 1 Jan 1938. Activated on 1 Dec 1940. Redesignated 9th Troop Carrier Squadron on 4 Jul 1942. Inactivated on 15 Oct 1946. Redesignated 9th Troop Carrier Squadron, Medium, on 10 May 1949. Activated in the Reserve on 27 Jun 1949. Ordered to active service on 1 May 1951. Inactivated on 9 May 1951. Redesignated 9th Troop Carrier Squadron, Heavy, on 19 Mar 1953. Activated on 20 Jun 1953. Discontinued, and inactivated, on 18 Jan 1963. Activated on 13 Nov 1964. Organized on 1 Jan 1965. Redesignated 9th Military Airlift Squadron on 8 Jan 1966. Discontinued, and inactivated, on 8 Sep 1968. Activated on 1 Apr 1971. Redesignated 9th Airlift Squadron on 1 Dec 1991.
Assignments. 63d Transport (later, 63d Troop Carrier) Group, 1 Dec 1940; Seventh Air Force, 3 Feb 1944; VI Air Service Area Command, 25 Jul 1945; Army Air Forces, Middle Pacific, 15 Dec 1945; Pacific Air Command, 1 Jan 1946; Far East Air Service Command, 9 Jan 1946; 54th Troop Carrier Wing, 15 Jan 1946; 374th Troop Carrier Group, c. Feb 1946; 54th Troop Carrier Wing, 15 May 1946; 403d Troop Carrier Group, 31 May-15 Oct 1946. 63d Troop Carrier Group, 27 Jun 1949-9 May 1951. 63d Troop Carrier Group, 20 Jun 1953-18 Jan 1963. Military Air Transport Service, 13 Nov 1964; 1607th Air Transport Wing, 1 Jan 1965; 436th Military Airlift Wing, 8 Jan 1966-8 Sep 1968. 436th Military Airlift Wing, 1 Apr 1971; 436th Operations Group, 1 Dec 1991-.
Stations. Patterson Field, OH, 1 Dec 1940; Brookley Field, AL, 18 Sep 1941; Camp Williams, WI, 24 May 1942; Dodd Field, TX, c. 18 Sep 1942; Stuttgart, AR, 11 Nov 1942; Victorville, CA, 18 Dec 1942; Ft Sumner AAFld, NM, 4 Mar 1943; Lawson Field, GA, 7 May 1943; Grenada AAFld, MS, c. 3 Jun 1943-17 Jan 1944; Hickam Field, TH, 21 Feb 1944; Abemama Island, 27 Mar 1944; Saipan, 4 Aug 1944; Guam, Jul-15 Oct 1946. Floyd Bennett NAS, NY, 27 Jun 1949-9 May 1951. Altus AFB, OK, 20 Jun 1953; Donaldson AFB, SC, 15 Oct 1953-18 Jan 1963. Dover AFB, DE, 1 Jan 1965-8 Sep 1968. Dover AFB, DE, 1 Apr 1971-.
Aircraft. C-34, 1940-1941; C-33, 1940-1941; C-39, 1940-1941; C-50, 1942; C-53, 1942-1943; C-47, 1942- 1946; C-46, 1945-1946; C-54, 1946. C-47, 1949-1951. C-124, 1953-1963. C-124, 1965-1966; C-141, 1966-1968. C-5, 1971-.
Operations. Replacement training, 1943, and subsequently aerial transportation in Central, Western, and Southwestern Pacific, during World War II. Worldwide airlift beginning in 1953. Resupply of scientific camps in Antartica, 1959-1961, and 1965-1968. Missions to Southeast Asia, 1965-1968, and 1972-1973. Evacuation of refugees from Southeast Asia, Apr 1975. Supported operations in Grenada, 24 Oct-11 Dec 1983; Panama, 19 Dec 1989-14 Jan 1990; and Southwest Asia, Aug 1990-Jul 1991.
Service Streamers. World War II American Theater.
Campaign Streamers. World War II: Air Offensive, Japan; New Guinea; Eastern Mandates; Bismark Archipelago; Western Pacific; Leyte; Ryukyus.
Armed Forces Expeditionary Streamers. None.
Decorations. Air Force Outstanding Unit Awards: 2 Mar-31 May 1955; 1 Jul 1957-10 Dec 1962; 18 Sep-15 Dec 1960; 9 Sep-13 Dec 1961; 13 Nov-18 Dec 1967; 1 Jan-8 Sep 1968; 1 Sep 1971-30 Jun 1972; 13 Oct-14 Nov 1973; 1 Jan 1974-30 Apr 1975; 1 May 1975-31 May 1976; 1 Jun 1976-31 May 1978; 1 Jun 1978-31 May 1979; 1 Jun 1981-31 May 1982; 1 Jun 1982-31 May 1984. Republic of Vietnam Gallantry Cross with Palm: 1 Apr 1966-[8 Sep 1968]; [8 Apr 1971]-28 Jan 1973.
Emblem. Approved on 10 Feb 1943 ; latest rendering, 27 Oct 2020.