May/June 1945. The aircraft left on 21–27 May 1945. The Ground unit went to Greenock on 22 June 1945 and sailed on Queen Elizabeth arriving in New York on 29 June 1945. After 30 days R & R some personnel assembled at Drew Field, Florida, where the Group was inactivated on 1 September 1945. Post Cold War The 398th BG was redesignated as the 398th Operations Group and activated 1 June 1992. Reactivated in 1992 as 398th Operations Group. Assigned first to 340th Air Refueling Wing, later to 97th Air Mobility Wing as a KC-135 air refueling group. From 1 June 1992 – 31 March 1995 the 93d Air Refueling Squadron was part of the group. The 398th OG was inactivated on 31 March 1995. During Operation Iraqi Freedom the title 398th Air Expeditionary Group was given to a collection of units and personnel operating from Naval Support Activity Souda Bay, Greece. Colonel Marcelyn A. Atwood commanded the group. Later in 2003, the unit participated in Operation Shining Express in Liberia, a rescue operation directed by United States European Command to evacuate civilians from parts of Liberia affected by the Second Liberian Civil War. Among the groups contributions was delivering a United States Marine Corps security forces team. Lineage Constituted as the 398th Bombardment Group (Heavy) on 15 February 1943<ref name=Maurer398BG>Maurer, ''Combat Squadrons, p. 284</ref> Activated on 1 March 1943 Redesignated 398th Bombardment Group, Heavy c. 20 August 1943 Inactivated on 1 September 1945 Redesignated 398th Operations Group in 1992 Activated on 1 June 1992 Inactivated on 31 March 1995 Redesignated 398th Expeditionary Air Refueling Group and converted to provisional status on 5 February 2001 Redesignated 398th Air Expeditionary Group''' on 18 March 2003 Activated in c. 13 July 2003 Inactivated on 8 October 2003 Activated in 2004 Inactivated on 17 June 2004 Activated on 25 March 2006 Inactivated on 8 April 2006 Activated on 14 March 2008 Inactivated on 30 April 2008 Air Expeditionary Service with Joint Task Force Liberia 2003; 2008. During this period the group flew the HH-60 helicopter, and Marine units attached to the group in 2003 operated the AV-8B Harrier. Assignments II Bomber Command, 1 March 1943 – 4 April 1944 1st Combat Bombardment Wing, 22 April 1944 – 22 June 1945 III Bomber Command, 3 July - 1 September 1945 340th Air Refueling Wing, 1 June - 1 October 1992 97th Air Mobility Wing,