View source for Harmon Air Force Base

{{Short description|World War II installation on Guam}}
{{About|the World War II installation on Guam|the Cold War base in Newfoundland, Canada|Ernest Harmon Air Force Base}}
{{Use American English|date=January 2024}}
{{Use dmy dates|date=January 2024}}
{{Infobox military structure
|name=Harmon Air Force Base<br>Depot Field
|ensign=Twentieth Air Force - Emblem (World War II).png
|ensign_size=65px
|partof = [[Twentieth Air Force]] (FEAF)
|location=
|coordinates={{Coord|13|30|0|N|144|48|30|E}}
|image= Air Depot Field Guam aerial photo January 1945.jpg
|image_size= 300px
|caption= Harmon Field, Guam, January 1945
|type=Military airfield
|code=
|built=1944
|builder=25th Seabees
|materials=
|height=
|used= 1944–1949
|demolished=
|condition=
|ownership=
|controlledby=[[United States Army Air Forces]]<br />[[United States Air Force]]
|garrison=
|commanders=
|occupants=
|battles=
|events=
}}
'''Harmon Air Force Base''' is a former [[World War II]] [[United States Army Air Forces]] airfield, and postwar [[United States Air Force]] Base on [[Guam]] in the [[Mariana Islands]]. Originally named "Depot Field", it was renamed in honor of [[Lieutenant general (United States)|Lieutenant General]] [[Millard Harmon|Millard F. Harmon]]. Harmon Air Force Base was closed in 1949 due to budget constraints and was merged with the neighboring [[Naval Air Station Agana]].

==History==
Harmon Field was built by [[Naval Mobile Construction Battalion 25|CB 25]] as the headquarters for the [[XXI Bomber Command]] and later [[Twentieth Air Force]] which directed the [[B-29 Superfortress]] strategic bombing campaign against the [[Japanese Archipelago|Japanese Home Islands]]. It was also the major B-29 aircraft depot and maintenance facility in the Western Pacific during the war, and that mission continued for [[Far East Air Force (United States)|Far East Air Forces]] until its closure.{{fact|date=January 2024}}

Harmon was used operationally by the United States Air Force [[11th Bombardment Group]] as an operational B-29 Base. After the war the [[9th Bombardment Group]] used the base for strategic reconnaissance missions and the [[374th Troop Carrier Group]] of the Technical Service Command used the base for transport of supplies and equipment from its depot facilities. Harmon Air Force Base was closed in 1949 due to budget constraints<ref>{{cite web|last=Shearon|first=Bernie|title=Guam Air Depot|url=http://www.cbi-history.com/part_iii_adg.html#20e|access-date=31 January 2013}}</ref>  and was merged with the neighboring [[Naval Air Station Agana]].{{fact|date=January 2024}}

Today, the technical facilities are an industrial area to the northeast of the [[Antonio B. Won Pat International Airport]], which served as the main airfield for both Harmon Air Force Base and Naval Air Station Agana.{{fact|date=January 2024}}

==Major units assigned==
*1537th Army Air Forces Base Unit, 30 September 1944 – 1 August 1945
*75th Air Service Group, 1 May 1947 – 20 September 1948
*367th Air Service Group, 1 May 1947 – 1 November 1949
*Guam Air Depot (later Guam Air Materiel Area, Marianas Air Materiel Area) 
: 56th Air Depot Group, Air Technical Service Command,  9 November 1944 – 31 August 1945
: 24th Air Depot Group, Air Technical Service Command,  8 November 1944 – 1 July 1949
: 55th Air Depot Group, Air Technical Service Command,  1 January 1945 – 21 December 1945
: 25th Air Depot Group, Air Technical Service Command, 21 January 1945 – 1 November 1949
*[[XXI Bomber Command]], 4 December 1944 – 16 July 1945
*[[Twentieth Air Force]], 16 July 1945 – 16 May 1949
*Western Pacific Wing, Air Transport Command, 10 April 1946 – 1 March 1947
*[[11th Bombardment Group]] (Very Heavy), 15 May 1946 – 20 October 1948
*[[9th Bombardment Group]]  (Very Heavy), 9 June 1947 – 20 October 1948
*[[374th Troop Carrier Group]], 1 April 1947 – 5 March 1949
*[[3d Space Operations Squadron|3d Reconnaissance Squadron]] (Very Long Range, Photographic), 11 January 1945 – 15 March 1947

==See also==

*[[Andersen Air Force Base]]
*[[United States Army Air Forces in the Central Pacific Area|USAAF in the Central Pacific]]
*[[Naval Base Guam]]

==References==
*Maurer, Maurer (1983). ''Air Force Combat Units of World War II''. "Maxwell Air Force Base, Alabama": Office of Air Force History. {{ISBN|0-89201-092-4}}.
{{Air Force Historical Research Agency}}

<references />

==External links==
*[http://www.pacificwrecks.com www.pacificwrecks.com]

{{USAAF 20th Air Force World War II}}

[[Category:Installations of the United States Air Force]]
[[Category:Military installations of the United States in Guam]]
[[Category:Installations of Strategic Air Command]]
[[Category:Military Superfund sites]]
[[Category:Airfields of the United States Army Air Forces in the Pacific Ocean theatre of World War II]]
[[Category:Airfields of the United States Army Air Forces Air Transport Command in the Pacific Ocean Theater]]
[[Category:Military installations closed in 1949]]
[[Category:1944 establishments in Guam]]