The 18th U-boat Flotilla (German 18. Unterseebootsflottille) was a short-lived unit of Nazi Germany's Kriegsmarinecf. Hattendorf (1995), p. 132 during World War II.
The flotilla was formed in Hel, Poland, in January 1945 under the command of Korvettenkapitän Rudolf Franzius. Officially a training flotilla (Ger. Ausbildungsflottille), the four U-boats were in combat in the Baltic Sea. It was disbanded in March 1945.
Assigned U-boats Four U-boats were assigned to this flotilla during its service.
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