Willius was born on 5 November 1919 in Mainz-Kostheim. Complete the following sentence: Willius was born on 5 November 1919 in Mainz-Kostheim. Following pilot training, "Obergefreiter" Willius was posted to 2. "Staffel" (2nd squadron) of "Jagdgeschwader" 20 (JG 20<unk>20th Fighter Wing). ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️ "Staffel" <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> Gruppe<unk> (1st group) of JG 20 which was commanded by<unk> Hauptmann<unk> Hannes Trautloft. "Gruppe" was equipped with the Messerschmitt Bf 109 E and fought in the Battle of France under the control of "Jagdgeschwader" 51 (JG 51<unk>51st Fighter Wing). ■■■■■■■■■■■■■■■■■■■■■
️<unk>️<unk>️<unk>️<unk>️<unk>️ "Gruppe" of JG 20 was officially integrated into JG 51, becoming its III. Gruppe, dated 4 July. Consequently, Willius became a member of the 8.<unk> Consequently, Willius became a member of the 8. "Staffel"<unk>