Middle Wallop was also used by the United States Army Air Forces Ninth Air Force as IX Fighter Command Headquarters beginning in November 1943. Along with its headquarters mission, the airfield also hosted the 67th Reconnaissance Group being moved from RAF Membury in December 1943 to be in close proximity to IX FC Headquarters. The 67th Group flew the photographic versions of the Lockheed P-38 Lightning (F-5) and North American P-51 Mustang (F-6) to fly artillery-adjustment, weather-reconnaissance, bomb-damage assessment, photographic-reconnaissance, and visual-reconnaissance missions to obtain photographs that aided the invasion of the Continent.