schwere Flak-Abteilung 321 (o)

Formed 26 Aug 1939 in Berlin from parts of I./Flak-Regiment 32 with 5 Batterien (1. - 3. schwere, 4. - 5. leichte). Until Jul 1942 known as Res.Flak-Abt. 321.

5./Res.321 and 4./323 exchanged designations in 1940.

Reorganised as a schwere Abteilung in mid-1942:

4./Res.321 became 7./604, and was reformed
5./Res.321 became 8./604

5. and 6./s.321 was formed in late 1942.

In 1943 5./s.321 became 6./625, and 6./s.321 became 5./477; neither was reformed.

Equipped with both 88mm and 105mm AA guns.

Service:

• 1939 in Stettin
• 1940/41 in Brest under Stab/Flak-Regiment 100
• Jul 1941 in Aachen
• 1 Nov 1943 in Essen under 4. Flak-Division (Stab/Flak-Regiment 44)
• 1 Jan 1944 in Essen under 4. Flak-Division (Stab/Flak-Regiment 44)
  • in Munstter under 22. Flak-Division (Stab/Flak-Regiment 54) [5./s.321]
  • in Dortmund under 22. Flak-Division (Stab/Flak-Regiment 124) [6./s.321]
• 1 Feb 1944 in Essen under 4. Flak-Division (Stab/Flak-Regiment 44)
  • in Munstter under 22. Flak-Division (Stab/Flak-Regiment 54) [5./s.321]
  • in Dortmund under 22. Flak-Division (Stab/Flak-Regiment 124) [6./s.321]
• 1 Mar 1944 in Essen under 4. Flak-Division (Stab/Flak-Regiment 44)
  • in Munstter under 22. Flak-Division (Stab/Flak-Regiment 54) [5./s.321]
  • in Dortmund under 22. Flak-Division (Stab/Flak-Regiment 124) [6./s.321]
• 1 Apr 1944 in Essen under 4. Flak-Division (Stab/Flak-Regiment 44)
• 1 May 1944 in Essen under 4. Flak-Division (Stab/Flak-Regiment 44)
• 1 Jun 1944 in Essen under 4. Flak-Division (Stab/Flak-Regiment 44)
• 1 Jul 1944 in Essen under 4. Flak-Division (Stab/Flak-Regiment 44)
• 1 Aug 1944 in Essen under 4. Flak-Division (Stab/Flak-Regiment 44)
• 1 Sep 1944 in Essen under 4. Flak-Division (Stab/Flak-Regiment 44)
• 1 Oct 1944 in Essen under 4. Flak-Division (Stab/Flak-Regiment 44)
• 1 Nov 1944 in Essen under 4. Flak-Division (Stab/Flak-Regiment 44)
• 1 Dec 1944 in Essen under 4. Flak-Division (Stab/Flak-Regiment 44)