Ergänzungs-Jagdgruppe West
Gruppenkommandeure:
Formed 27.1.42 in Cazaux from Ergänzungsgruppe/JG2 (Stab only), 1. staffel from Ausbildungsstaffel/JG2, 2./West from Ausb.Staffel/JG26.
3./JGr. West was formed in the autumn of 1942, and 4./JGr. West was formed on 7.10.43.
The Ergänzungs-Jagdgruppe West was renamed Jagdgruppe West in 12.42. On 7.6.44 1./JGr. West exchanged designations with 4./JGr. Süd, and 2./JGr. West with 2./JGr. Süd.
2.11.44 JGr. West was redesignated IV./EJG1.
Bases:
| 1.42 - 2.44 | Cazaux | Bf 109E/F/G, Fw 190A | |
| 2.44 - 15.5.44 | Biarritz* | Bf 109G, Fw 190A | |
| 15.5.44 - 2.11.44 | Märkisch-Friedland** | Bf 109G, Fw 190A |
* 1./JGr. West was based at Tarbes, 11.43 - 15.5.44; 2./JGr. West in Biarritz 11.43, and at Fontenay-le-Comte, 2.44 - 15.5.44; 3./JGr. West at Bussac, 2.44 - 15.5.44; 4./JGr. West at Corme-Ecluse 11.43, and at Biarritz 2.44 - 15.5.44.
** 1. and 2./JGr. West was based at Gabbert, from 5.44 to at least 7.44.