schwere Flak-Abteilung 331 (o)

Formed 26 Aug 1939 in Halle from parts of I./Flak-Regiment 33 with 5 Batterien (1. - 3. schwere, 4. - 5. leichte). Until Jul 1942 known as Res.Flak-Abt. 331.

Reorganised as a schwere Abteilung in late 1942:

4./gem.331 became 2./784, and was reformed from 4./511
5./gem.331 became 3./784

5./s.331 was formed in 1943 from 6./245; 6./331 was formed in 1944 from s.Flak-Bttr.zbV 10420 (RAD); 7. and 8./s.331 was formed in late 1944 (7. from 6./666, 8. from 8./666).

In 1944 5./s.331 became 4./11600, and was reformed from s.Flak-Bttr.zbV 10412.

Service:

• 1939 in Luftgau IV
• Apr 1942 in Kassel
• May 1942/Oct 1942 near Bonn
• 1 Nov 1943 in Brühl-Wesseling under 7. Flak-Division (Stab/Flak-Regiment 144)
• 1 Jan 1944 in Brühl-Wesseling under 7. Flak-Division (Stab/Flak-Regiment 144)
• 1 Feb 1944 in Brühl-Wesseling under 7. Flak-Division (Stab/Flak-Regiment 144)
• 1 Mar 1944 in Brühl-Wesseling under 7. Flak-Division (Stab/Flak-Regiment 144)
• 1 Apr 1944 in Brühl-Wesseling under 7. Flak-Division (Stab/Flak-Regiment 144)
• 1 May 1944 in Brühl-Wesseling under 7. Flak-Division (Stab/Flak-Regiment 144)
• 1 Jun 1944 in Brühl-Wesseling under 7. Flak-Division (Stab/Flak-Regiment 144)
• 1 Jul 1944 in Brühl-Wesseling under 7. Flak-Division (Stab/Flak-Regiment 144)
• 1 Aug 1944 in Brühl-Wesseling under 7. Flak-Division (Stab/Flak-Regiment 144)
• 1 Sep 1944 in Brühl-Wesseling under 7. Flak-Division (Stab/Flak-Regiment 144)
• 1 Oct 1944 in Brühl-Wesseling under 7. Flak-Division (Stab/Flak-Regiment 144)
• 1 Nov 1944 in Köln-Wahn under 7. Flak-Division (Stab/Flak-Regiment 14)
• 1 Dec 1944 in Köln-Wahn under 7. Flak-Division (Stab/Flak-Regiment 14)