After training in the United States, it was deployed to Ninth Air Force in England in the spring of 1944, prior to the D-Day landings in France.

During the Battle of the Bulge, it also flew day and night interdiction missions against enemy troop movements, bridges and other targets of opportunity.

[2] After a new fighter weapons system completes developmental testing at either Edwards Air Force Base, California, or at Eglin, the mission of the 422d TES to thoroughly vet the new equipment in a combat representative environment.

The squadron supports other mission areas, to include foreign materiel exploitation and field visits to instruct operational aircrews on new systems and tactics.

Subsequently, the squadron had its aircrews posted to various Royal Air Force night fighter and signal schools for theater indoctrination.

The first Black Widow V-1 "kill" took place on 16 July 1944, credited to pilot Herman Ernst and radar operator Edward Kopsel of the 422nd Night Fighter Squadron.

[5] Finally, on 25 July, a month and a half after D-Day, the squadron was considered to be operationally ready for night interception and moved up to Maupertu Airfield (A-15) in France.

As the number of enemy night intruders was small, the squadron also performed offensive interdictionary attacks on Axis forces in France and the Low Countries 1944, moving eastward through a series of Advanced Landing Grounds until operating from captured Luftwaffe bases in Germany during the spring of 1945.

Demobilized in Europe, aircraft flown back to the United States for storage or use with postwar All Weather Air Defense Command interceptor squadrons.

In 1977, F-111 testing ended at Nellis and was relocated to McClellan Air Force Base, California, as Detachment 3, 57th Fighter Weapons Wing.

McClellan was the Air Force Logistics Command prime support depot for the F-111 and changes and modifications could be made there and tested by the detachment.

[6] 1989 saw the rapid expansion of squadron capability with the addition of the F-15E and F-16C Low Altitude Navigation Targeting Infrared for Night (LANTIRN) aircraft.

The efforts of the 422 TES over the past ten years to improve weapons, avionics, and tactics provided the ultimate reward: a quick and decisive victory.

[6] The mission of the 422d Test and Evaluation Squadron continues to grow in scope and complexity as new aircraft and systems are developed for use in the combat air forces.