The IX Fighter Command was a
United States Army Air Forces
The United States Army Air Forces (USAAF or AAF) was the major land-based aerial warfare service component of the United States Army and ''de facto'' aerial warfare service branch of the United States during and immediately after World War II ...
formation. Its last assignment was with the
Ninth Air Force
The Ninth Air Force (Air Forces Central) is a Numbered Air Force of the United States Air Force headquartered at Shaw Air Force Base, South Carolina. It is the Air Force Service Component of United States Central Command (USCENTCOM), a joint De ...
, based at
Erlangen
Erlangen (; East Franconian: ''Erlang'', Bavarian: ''Erlanga'') is a Middle Franconian city in Bavaria, Germany. It is the seat of the administrative district Erlangen-Höchstadt (former administrative district Erlangen), and with 116,062 inhabi ...
, Germany, wheret was inactivated on 16 November 1945.
IX Fighter Command was the primary tactical fighter air arm of
Ninth Air Force
The Ninth Air Force (Air Forces Central) is a Numbered Air Force of the United States Air Force headquartered at Shaw Air Force Base, South Carolina. It is the Air Force Service Component of United States Central Command (USCENTCOM), a joint De ...
in the
Western Desert Campaign in North Africa during 1942-1943. Transferred to England, it became the dominant tactical air force over the skies of Western Europe during the 1944
Battle of Normandy
Operation Overlord was the codename for the Battle of Normandy, the Allied operation that launched the successful invasion of German-occupied Western Europe during World War II. The operation was launched on 6 June 1944 (D-Day) with the Norm ...
and the
Western Allied invasion of Germany
The Western Allied invasion of Germany was coordinated by the Western Allies during the final months of hostilities in the European theatre of World War II. In preparation for the Allied invasion of Germany east of the Rhine, a series of offen ...
in 1945.
After its inactivation, the majority of its (along with
Twelfth Air Force
The Twelfth Air Force (12 AF; Air Forces Southern, (AFSOUTH)) is a Numbered Air Force of the United States Air Force Air Combat Command (ACC). It is headquartered at Davis–Monthan Air Force Base, Arizona.
The command is the air component to ...
) units were incorporated into the postwar
United States Air Force
The United States Air Force (USAF) is the air service branch of the United States Armed Forces, and is one of the eight uniformed services of the United States. Originally created on 1 August 1907, as a part of the United States Army S ...
Tactical Air Command
Tactical Air Command (TAC) is an inactive United States Air Force organization. It was a Major Command of the United States Air Force, established on 21 March 1946 and headquartered at Langley Air Force Base, Virginia. It was inactivated on 1 J ...
.
History
North Africa
In Egypt during January 1943, IX Fighter Command became the control organization for
Ninth Air Force
The Ninth Air Force (Air Forces Central) is a Numbered Air Force of the United States Air Force headquartered at Shaw Air Force Base, South Carolina. It is the Air Force Service Component of United States Central Command (USCENTCOM), a joint De ...
fighter units assigned to the
Western Desert Campaign (Libya and Tunisia).
Although wings were officially subordinate to the command, combat groups were attached to the
Desert Air Force
The Desert Air Force (DAF), also known chronologically as Air Headquarters Western Desert, Air Headquarters Libya, the Western Desert Air Force, and the First Tactical Air Force (1TAF), was an Allied tactical air force created from No. 204 ...
, which included squadrons of the
Royal Air Force
The Royal Air Force (RAF) is the United Kingdom's air and space force. It was formed towards the end of the First World War on 1 April 1918, becoming the first independent air force in the world, by regrouping the Royal Flying Corps (RFC) an ...
,
Royal Australian Air Force
"Through Adversity to the Stars"
, colours =
, colours_label =
, march =
, mascot =
, anniversaries = RAAF Anniversary Commemoration ...
and
South African Air Force
"Through hardships to the stars"
, colours =
, colours_label =
, march =
, mascot =
, anniversaries =
, equipment ...
.
IX Fighter Command moved to England in November 1943 as part of Normandy invasion planning. Its subordinate units were reassigned to the
Twelfth Air Force
The Twelfth Air Force (12 AF; Air Forces Southern, (AFSOUTH)) is a Numbered Air Force of the United States Air Force Air Combat Command (ACC). It is headquartered at Davis–Monthan Air Force Base, Arizona.
The command is the air component to ...
.
Western Europe

During the winter of 1943/44 IX Fighter Command expanded at an extraordinary rate so that by the end of May 1944, its complement ran to 45 flying groups operating some 5,000 aircraft. Initial missions from England consisted of fighter sweeps over troop concentrations and attacks on enemy positions and airfields, primarily on German
15th Army units in the
Pas-de-Calais
Pas-de-Calais (, " strait of Calais"; pcd, Pas-Calés; also nl, Nauw van Kales) is a department in northern France named after the French designation of the Strait of Dover, which it borders. It has the most communes of all the departments ...
region of France as well as around
Normandy
Normandy (; french: link=no, Normandie ; nrf, Normaundie, Nouormandie ; from Old French , plural of ''Normant'', originally from the word for "northman" in several Scandinavian languages) is a geographical and cultural region in Northwestern ...
and
Cotentin Peninsula
The Cotentin Peninsula (, ; nrf, Cotentîn ), also known as the Cherbourg Peninsula, is a peninsula in Normandy that forms part of the northwest coast of France. It extends north-westward into the English Channel, towards Great Britain. To its w ...
. On
D-Day IX Fighter Command units carried out massive air attacks on German forces in Normandy area with
North American P-51 Mustang
The North American Aviation P-51 Mustang is an American long-range, single-seat fighter and fighter-bomber used during World War II and the Korean War, among other conflicts. The Mustang was designed in April 1940 by a team headed by James ...
and
Republic P-47 Thunderbolt
The Republic P-47 Thunderbolt is a World War II-era fighter aircraft produced by the American company Republic Aviation from 1941 through 1945. It was a successful high-altitude fighter and it also served as the foremost American fighter-bom ...
fighter bomber
A fighter-bomber is a fighter aircraft that has been modified, or used primarily, as a light bomber or attack aircraft. It differs from bomber and attack aircraft primarily in its origins, as a fighter that has been adapted into other roles, wh ...
s. Air cover during the morning amphibious assault by Allied forces on the beaches of France was flown by
Lockheed P-38 Lightning
The Lockheed P-38 Lightning is an American single-seat, twin piston-engined fighter aircraft that was used during World War II. Developed for the United States Army Air Corps by the Lockheed Corporation, the P-38 incorporated a distinctive twi ...
s.
With the beaches secure, groups began deploying to France on 16 June 1944, ten days after the Normandy invasion by moving P-47 Thunderbolts to a beach-head landing strip. During the Battle of Normandy, its tactical air units then provided the air power for the Allied break-out from the Normandy beachhead in the summer of 1944 during the
Battle of Cherbourg
The Battle of Cherbourg was part of the Battle of Normandy during World War II. It was fought immediately after the successful Allied landings on 6 June 1944. Allied troops, mainly American, isolated and captured the fortified port, which wa ...
,
Battle for Caen
The Battle for Caen (June to August 1944) is the name given to fighting between the British Second Army and the German in the Second World War for control of the city of Caen and its vicinity during the larger Battle of Normandy. The battle ...
, and the ultimate breakout from the beachhead,
Operation Cobra
Operation Cobra was the codename for an offensive launched by the United States First Army under Lieutenant General Omar Bradley seven weeks after the D-Day landings, during the Normandy campaign of World War II. The intention was to take ...
.

By early August most IX Fighter Command groups moved to bases in France and were assigned to missions supporting the
Twelfth United States Army Group
The Twelfth United States Army Group was the largest and most powerful United States Army formation ever to take to the field, commanding four field armies at its peak in 1945: First United States Army, Third United States Army, Ninth United Sta ...
. The command then reorganized, with units transferred to three tactical air commands and which directly supported
United States Army
The United States Army (USA) is the land warfare, land military branch, service branch of the United States Armed Forces. It is one of the eight Uniformed services of the United States, U.S. uniformed services, and is designated as the Army o ...
ground units, along with an air defense command to defend Allied-controlled areas.
*
XXIX Tactical Air Command
The XXIX Tactical Air Command (Provisional) was a provisional United States Army Air Forces unit, primarily formed from units of IX Fighter Command. Its last assignment was with Ninth Air Force at Weimar, Germany, where it was inactivated on 25 ...
supported the
Ninth United States Army
The Ninth Army is a field army of the United States Army, garrisoned at Caserma Ederle, Vicenza, Italy. It is the United States Army Service Component Command of United States Africa Command (USAFRICOM or AFRICOM).
Activated just eight weeks b ...
in the north
*
IX Tactical Air Command
The IX Tactical Air Command was a formation of the United States Army Air Forces. It fought in the European theater of World War II. Its last assignment was at Camp Shanks, New York, where it was inactivated on 25 October 1945.
History
Formed ...
supported the
United States First Army
First Army is the oldest and longest-established field army of the United States Army. It served as a theater army, having seen service in both World War I and World War II, and supplied the US army with soldiers and equipment during the Kore ...
in the center
*
XIX Tactical Air Command supported the
United States Third Army
The United States Army Central, formerly the Third United States Army, commonly referred to as the Third Army and as ARCENT, is a military formation of the United States Army which saw service in World War I and World War II, in the 1991 Gulf Wa ...
in the south
*
IX Air Defense Command provided air defense of Allied-controlled Western Europe
After its units were reassigned, it remained active until after
VE-Day
Victory in Europe Day is the day celebrating the formal acceptance by the Allies of World War II of Germany's unconditional surrender of its armed forces on Tuesday, 8 May 1945, marking the official end of World War II in Europe in the Easter ...
when performed occupation duty in Germany. It was inactivated in November 1945.
In 1947, when the United States Air Force (USAF) became independent, the Army transferred all Army Air Forces, Air Service and Air Corps units (there were a number of Air Corps units that had never been in the Army Air Forces, and a few Air Service units) to the USAF. A year later, the newly forming USAF permanently disbanded the command.
Lineage
* Constituted as the 9th Interceptor Command on 19 January 1942
[Maurer indicates unit was constituted as the "IX" Interceptor Command. However, the unit was constituted and activated with an arabic number in its name. The use of ]roman numeral
Roman numerals are a numeral system that originated in ancient Rome and remained the usual way of writing numbers throughout Europe well into the Late Middle Ages. Numbers are written with combinations of letters from the Latin alphabet, eac ...
s to designate Army Air Forces combat commands did not begin until September 1942.
: Activated on 1 February 1942
: Redesignated 9th Fighter Command on 15 May 1942
: Redesignated IX Fighter Command c. 18 September 1942
: Inactivated on 16 November 1945
: Disbanded on 8 October 1948
[
]
Assignments
* Third Air Force
The Third Air Force (Air Forces Europe) (3 AF) is a numbered air force of the United States Air Forces in Europe - Air Forces Africa (USAFE-AFAFRICA). Its headquarters is Ramstein Air Base, Germany. It is responsible for all U.S. air forces in E ...
, 1 February 1942
* Ninth Air Force
The Ninth Air Force (Air Forces Central) is a Numbered Air Force of the United States Air Force headquartered at Shaw Air Force Base, South Carolina. It is the Air Force Service Component of United States Central Command (USCENTCOM), a joint De ...
, 23 December 1942 – 16 November 1945
Components
North Africa
; Wings
* 8th Fighter Wing
The United States Air Force 8th Fighter Wing is the host unit at Kunsan Air Base, Republic of Korea and is assigned to Seventh Air Force. Seventh Air Force falls under Pacific Air Forces (PACAF). The Wing's 8th Operations Group is the succes ...
: assigned 24 July – 22 December 1942 (attached to 3d Fighter Command (later III Fighter Command
The III Fighter Command is an inactive United States Air Force unit. Its last assignment was at MacDill Field, Florida. It was inactivated on 8 April 1946.
History Background
GHQ Air Force (GHQ,AF) had been established with two major comba ...
)) 26 July – c. 28 October 1942; attached 22 December 1942 – c. April 1943
* 9th Fighter Wing
9 (nine) is the natural number following and preceding .
Evolution of the Arabic digit
In the beginning, various Indians wrote a digit 9 similar in shape to the modern closing question mark without the bottom dot. The Kshatrapa, Andhra a ...
: December 1942 – 31 March 1943
; Groups
* 57th Fighter Group, c. 16 July 1942 – July 1942; 12 November 1942 – 30 August 1943, (attached to Western Desert Air Force, 21 February 1943; Desert Air Force
The Desert Air Force (DAF), also known chronologically as Air Headquarters Western Desert, Air Headquarters Libya, the Western Desert Air Force, and the First Tactical Air Force (1TAF), was an Allied tactical air force created from No. 204 ...
, c. April 1943; 7 South African Air Force (No. 7 (South African) Wing
No. 7 Wing (SAAF) was a South African Airforce fighter-bomber Wing (military unit), air wing during World War II. The Wing served in the Western Desert and Italian campaigns. By the end of the North African campaign in May 1943, SAAF No 7 Wing, c ...
?), 21 May 1943; XII Air Support Command 22 August 1943)
* 79th Fighter Group: 24 February – 22 August 1943 (attached to No. 7 (South African) Wing
No. 7 Wing (SAAF) was a South African Airforce fighter-bomber Wing (military unit), air wing during World War II. The Wing served in the Western Desert and Italian campaigns. By the end of the North African campaign in May 1943, SAAF No 7 Wing, c ...
– c. 2 June 1943; XII Air Support Command – c. 14 June 1943; No. 7 (South African) Wing – c. 21 August 1943)
* 324th Fighter Group
3 (three) is a number, numeral and digit. It is the natural number following 2 and preceding 4, and is the smallest odd prime number and the only prime preceding a square number. It has religious or cultural significance in many societie ...
, 23 December 1942 – 1 August 1943, (attached to Western Desert Air Force, 23 December 1942; Desert Air Force, c. April–1 August 1943)
Western Europe
; Wings
* 70th Fighter Wing: 29 November 1943 – 3 October 1944
* 71st Fighter Wing: 4 December 1943 – 1 July 1944
* 84th Fighter Wing: 30 April 1944 – 12 August 1944
* 100th Fighter Wing
1 (one, unit, unity) is a number representing a single or the only entity. 1 is also a numerical digit and represents a single unit of counting or measurement. For example, a line segment of ''unit length'' is a line segment of length 1. I ...
: 27 November – 12 December 1943; 4 January − 1 February 1944; 1 March − 15 April 1944 (remained under operational control until 31 July 1944)
* 303d Fighter Wing: 8 March–1 November 1944
; Groups
* 67th Tactical Reconnaissance Group: November 1943 – February 1944
* 354th Fighter Group: c. 3 November 1943 – 27 November 1943
* 358th Fighter Group 358th may refer to:
* 358th Bombardment Squadron, inactive United States Air Force unit
* 358th Fighter Group, inactive United States Army Air Force unit
* 358th Fighter Squadron (358 FS), part of the 355th Fighter Wing at Davis-Monthan Air Force B ...
: 20 October 1943 – 1 August 1944 (attached to VIII Fighter Command
The VIII Fighter Command was a United States Army Air Forces unit of command above the wings and below the numbered air force. Its primary mission was command of fighter operations within the Eighth Air Force. In the World War II European The ...
)
* 363d Fighter Group 363rd or 363d may refer to:
*363d Expeditionary Operations Group, inactive United States Air Force unit
*363d Bombardment Squadron or 19th Antisubmarine Squadron, inactive United States Air Force unit
*363d Fighter Squadron or 164th Airlift Squadro ...
(later 363d Reconnaissance Group), 30 December 1943 – February 1944; 1 December 1944 – 18 May 1945 (Attached to XXIX Tactical Air Command (Provisional)
The XXIX Tactical Air Command (Provisional) was a provisional United States Army Air Forces unit, primarily formed from units of IX Fighter Command. Its last assignment was with Ninth Air Force at Weimar, Germany, where it was inactivated on ...
)
* 366th Fighter Group 366th may refer to:
*366th Bombardment Squadron, inactive United States Air Force unit
*366th Division (IDF), also known as the "Path of Fire" Division, a reserve armored division of the IDF
*366th Fighter Squadron, inactive United States Air Force ...
: 28 January – 28 June 1945 (attached to XXIX Tactical Air Command (Provisional)
The XXIX Tactical Air Command (Provisional) was a provisional United States Army Air Forces unit, primarily formed from units of IX Fighter Command. Its last assignment was with Ninth Air Force at Weimar, Germany, where it was inactivated on ...
until 21 June 1945)
* 368th Fighter Group 368th may refer to:
*368th Bombardment Squadron, inactive United States Air Force unit
*368th Expeditionary Air Support Operations Group (368 EASOG) is a support unit of the United States Air Force
*368th Fighter Group or 136th Airlift Wing, unit o ...
: 13 January–1 August 1944
* 370th Fighter Group
The 370th Fighter Group was a unit of the Ninth Air Force that was located in the European Theater of Operations during World War II.Maurer, Maurer. ''Air Force Combat Units Of World War II''. Maxwell AFB, Alabama: Office of Air Force History, 198 ...
: 12 February–1 August 1944
* 371st Fighter Group 371st may refer to:
* 371st Bombardment Squadron, inactive United States Air Force unit
*371st Engineer Construction Battalion or 371st Engineer Battalion, activated as a Special Service Regiment in the United States Army in 1944
* 371st Fighter Gr ...
: 4 April–1 August 1944
* 404th Fighter Group
4 (four) is a number, numeral (linguistics), numeral and numerical digit, digit. It is the natural number following 3 and preceding 5. It is the smallest semiprime and composite number, and is tetraphobia, considered unlucky in many East Asian c ...
: 4 April–1 August 1944
* 405th Fighter-Bomber Group
4 (four) is a number, numeral and digit. It is the natural number following 3 and preceding 5. It is the smallest semiprime and composite number, and is considered unlucky in many East Asian cultures.
In mathematics
Four is the smallest co ...
(later 405th Fighter Group): 6 March – March 1944; 8 February − February 1945 (attached to XXIX Tactical Air Command (Provisional)
The XXIX Tactical Air Command (Provisional) was a provisional United States Army Air Forces unit, primarily formed from units of IX Fighter Command. Its last assignment was with Ninth Air Force at Weimar, Germany, where it was inactivated on ...
)
* 406th Fighter Group
4 (four) is a number, numeral and digit. It is the natural number following 3 and preceding 5. It is the smallest semiprime and composite number, and is considered unlucky in many East Asian cultures.
In mathematics
Four is the smalles ...
: 4 April–1 August 1944
* 474th Fighter Group 474th may refer to:
* 474th Air Expeditionary Group, provisional United States Air Force unit assigned to Air Combat Command
*474th Bombardment Squadron, inactive United States Air Force unit
*474th Infantry Regiment (United States) or 74th Infantr ...
: 12 March–1 August 1944
; Squadrons
* 4th Air Support Control Squadron: 19 November – 12 December 1943
* 6th Air Support Communications Squadron (later 6th Tactical Air Communications Squadron): 30 December 1943 – 31 January 1944; 1 December 1944 – 1 July 1945 (attached to XXIX Tactical Air Command rovisional
* 11th Air Support Control Squadron: 11 December 1943 – c. 1 February 1944
* 15th Tactical Reconnaissance Squadron
15 (fifteen) is the natural number following 14 and preceding 16.
Mathematics
15 is:
* A composite number, and the sixth semiprime; its proper divisors being , and .
* A deficient number, a smooth number, a lucky number, a pernicious nu ...
; 30 December 1943 – 4 January 1944
* 125th Liaison Squadron
1 (one, unit, unity) is a number representing a single or the only entity. 1 is also a numerical digit and represents a single unit of counting or measurement. For example, a line segment of ''unit length'' is a line segment of length 1. I ...
; 1 December 1944 – 20 June 1945 (attached to XIX Tactical Air Command (Provisional), further attached to Twelfth Army Group)
* 153d Liaison Squadron; 12 December 1943 – 14 March 1944 (attached to First Army after 4 February 1944)
Stations
* New Orleans Army Air Base
Lakefront Airport is a public airport five miles northeast of downtown New Orleans, in Orleans Parish, Louisiana, United States. The National Plan of Integrated Airport Systems for 2011–2015 categorized it as a general aviation ''reliever ...
, Louisiana, 1 February 1942
* Drew Field
Tampa International Airport is an international airport west of Downtown Tampa, in Hillsborough County, Florida, United States. The airport is publicly owned by Hillsborough County Aviation Authority (HCAA)., effective December 30, 2021. The ...
, Florida, July–October 1942
* RAF Kabrit
The Royal Air Force (RAF) is the United Kingdom's air and space force. It was formed towards the end of the First World War on 1 April 1918, becoming the first independent air force in the world, by regrouping the Royal Flying Corps (RFC) ...
, Egypt, 31 January 1943
* Mellaha Field
Mitiga International Airport (مطار معيتيقة الدولي) is an airport in Libya, located about east of Tripoli's city centre.
The airport has a diverse international history and has been known by a variety of names. It was original ...
, Libya, 10 April–22 September 1943
* RAF Middle Wallop
Middle Wallop is a village in the civil parish of Nether Wallop in Hampshire, England, on the A343 road. At the 2011 Census the population was included in the civil parish of Over Wallop. The village has a public house, The George Inn, and a p ...
(AAF 449), England, 30 November 1943 – July 1944
* Les Oubeaux, France, c. 2 July 1944
* Canisy, France, c. 12 August 1944
* Charleroi Airfield (A-87), Belgium, September 1944
* Verviers
Verviers (; wa, Vervî) is a city and municipality of Wallonia located in the province of Liège, Belgium.
The municipality consists of the following districts: Ensival, Heusy, Lambermont, Petit-Rechain, Stembert, and Verviers. It is also ...
, Belgium, c. 2 October 1944
* Bruhl, Germany, c. 23 March 1945
* Weimar Airfield (R-7), Germany, April 1945
* AAF Station Fritzlar (Y-86), Germany, July 1945
* AAF Station Erlangen, Germany (R-96), September–16 November 1945[Station information in Maurer, pp. 447-448, except as noted.]
References
Notes
; Explanatory notes
; Citations
Bibliography
*
*
*
*
*
{{USAAF 9th Air Force UK
09
Military units and formations established in 1942
Military units and formations disestablished in 1948