Lineage. Constituted as 611 Military Airlift Support Squadron on 18 Mar 1969. Activated on 8 Apr 1969. Inactivated on 1 Jan 1986. Consolidated (3 Mar 1987) with the 611 Military Airlift Support Group which was established on 8 Nov 1985. Activated on 1 Jan 1986. Consolidated organization retained designation as 611 Military Airlift Support Group. Redesignated as: 611 Airlift Support Squadron on 1 Jun 1992; 631 Air Mobility Support Squadron on 1 Jul 1994; 731 Air Mobility Squadron on 15 Mar 2001.
Assignments. 65 Military Airlift (later, 65 Military Airlift Support) Group, 8 Apr 1969; 61 Military Airlift Support Wing, 1 Jan 1972; 316 Tactical Airlift Group, 1 Oct 1978; 834 Airlift Division, 15 Nov 1983-1 Jan 1986. 834 Airlift Division, 1 Jan 1986; Twenty-Second Air Force, 1 Apr 1992; 603 Airlift Support Group, 1 Jun 1992; 615 Air Mobility Support (later, 715 Air Mobility Operations) Group, 1 Jul 1994; 515 Air Mobility Operations Group, 5 Jun 2008-.
Stations. Kimpo AB, Korea, 8 Apr 1969; Osan AB, Korea, 29 Aug 1971-1 Jan 1986. Osan AB, Korea, 1 Jan 1986-.
Service Streamers. Global War on Terrorism-Service (GWOT-S).
Armed Forces Expeditionary Streamers. None.
Campaign Streamers. None.
Decorations. Air Force Outstanding Unit Awards: [8 Apr] 1969-30 Jun 1970; 1 Jul 1970-30 Jun 1972; 1 Jul 1972-30 Jun 1973; 1 Jul 1985-30 Jun 1986; 1 Jul 1987-30 Jun 1989; 1 Jul 1994-30 Jun 1996; 1 Jul 1997-30 Jun 1999; 1 Jul 1999-30 Jun 2001; 1 Jul 2001-30 Jun 2003; 1 Oct 2004-30 Sep 2005; 1 Oct 2005-30 Sep 2006; 1 Oct 2006-30 Sep 2007; 1 Oct 2007-30 Sep 2008; 1 Oct 2008-30 Sep 2009; 1 Oct 2009-30 Sep 2010; 1 Oct 2010-30 Sep 2011; 1 Oct 2011-30 Sep 2013; 1 Oct 2014-30 Sep 2016; 1 Oct 2018-30 Sep 2020; 1 Oct 2020-30 Sep 2021. Republic of Vietnam Gallantry Cross with Palm: [8 April 1969]-28 Jan 1973. Republic of Korea Presidential Unit Citation: 19-20 Aug 1972.
Lineage, Assignments, Stations, and Honors through 3 Nov 2022.
Supersedes statement prepared on 19 Nov 2008.
Emblem. Approved on 23 Sep 1987; latest rendering, 31 Mar 1999.
Prepared by James Musser.
Reviewed by Margaret Ream.