The abbreviation z. b. V. is German and stands for zur besonderen Verwendung (for special deployment).

was initially formed on 31 October 1943 for a period of three months under control of Jagdfliegerführer Ostmark, controlling day-time fighter operations in this area of operations.

On June 15, 1944 it was redesignated Stab/JG 4 and its first Geschwaderkommodore was Major Gerhard Michalski.

Jagd-Division and used in the Reichsluftverteidigung (Defense of the Reich) from bases in Kassel and Ansbach.

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