The 2nd U-boat Flotilla, also known as the Saltzwedel Flotilla, was the second operational U-boat unit in Nazi Germany's Kriegsmarine. Founded on 1 September 1936 under the command of Fregattenkapitän Werner Scheer, it was named in honour of Oberleutnant zur See Reinhold Saltzwedel. Saltzwedel, a U-boat commander during World War I, died on 2 December 1917, when his submarine UB-81 was sunk by a mine in the English Channel.
The 7th U-boat Flotilla, also known as Wegener Flotilla, was the seventh operational U-boat combat unit in Nazi Germany's Kriegsmarine. Founded on 25 June 1938 under the command of Korvettenkapitän Werner Sobe, it was named in honour of Kapitänleutnant Bernd Wegener. Wegener, a U-boat commander during World War I, died on 19 August 1915 after his submarine U-27 was sunk by British Q-ship HMS Baralong, which was itself a much disputed battle with the Royal Navy accused of war crimes by the German Navy.
The 3rd U-boat Flotilla, also known as Lohs Flotilla, was the third operational U-boat unit in Nazi Germany's Kriegsmarine. Founded on 4 October 1937 under the command of Kapitänleutnant Hans Eckermann, it was named in honour of Oberleutnant zur See Johannes Lohs. Lohs, a U-boat commander during World War I, died on 14 August 1918 after his submarine UB-57 was sunk by a mine.
German submarine U-256 was a Type VIIC U-boat of Nazi Germany's Kriegsmarine during World War II, she also served for a short time as an anti-aircraft submarine under the designation U-flak 2. During her career, U-256 completed five wartime patrols and sank one warship of 1,300 tons.
29th U-boat Flotilla was formed in December 1941 in La Spezia in Italy under the command of Korvettenkapitän Franz Becker. The flotilla operated mostly various marks of the Type VII U-boat and it concentrated its efforts mainly in the Mediterranean Sea, against convoys. In August 1943, the flotilla moved to Toulon, but did also have U-boats in Marseille and Salamis. The flotilla was disbanded in September 1944, when U-407 was sunk on September 19 and the two last flotilla boats U-565 and U-596 were scuttled in Salamis.
The 4th U-boat Flotilla was formed in May 1941 in Stettin under the command of Kapitänleutnant Werner Jacobsen. Nearly 300 boats received their basic training at the flotilla. The flotilla was disbanded in May 1945.
The 5th U-boat Flotilla, also known as Emsmann Flotilla, was a U-boat flotilla of Nazi Germany's Kriegsmarine during World War II.
The 6th U-boat Flotilla, also known as Hundius Flotilla, was a front-line unit of Nazi Germany's Kriegsmarine before and during World War II.
The 10th U-boat Flotilla was a German U-boat flotilla used for front-line combat purposes during World War II. Founded on 15 January 1942 at Lorient under the command of Korvettenkapitän Günther Kuhnke, eighty U-boats operated with this flotilla before it was dissolved on 21 August 1944, and the remaining U-boats were moved to bases in Norway and Germany. Kuhnke himself took command of U-853, the last U-boat to leave, on 27 August 1944 to sail to Flensburg where he assumed command of 33rd U-boat Flotilla.
25th U-boat Flotilla was formed in Danzig in April 1940 as a training flotilla responsible for Firing Training.
Ernst Kals was a Kapitän zur See with the Kriegsmarine during World War II. He commanded the Type IXC U-boat U-130 on five patrols. He was awarded the Knight's Cross of the Iron Cross.
21st U-boat Flotilla was a unit of Nazi Germany's Kriegsmarine before and during World War II. It was formed in 1935 as a Schulverband based at Kiel under the command of Kapitän zur See Kurt Slevogt.
The 18th U-boat Flotilla was a short-lived unit of Nazi Germany's Kriegsmarine during World War II.
The 19th U-boat Flotilla was a unit of Nazi Germany's Kriegsmarine during World War II.
20th U-boat Flotilla was a training flotilla of Nazi Germany's Kriegsmarine during World War II.
23rd U-boat Flotilla was a unit of Nazi Germany's Kriegsmarine during World War II.
24th U-boat Flotilla was a training flotilla ("Ausbildungsflottille") of Nazi Germany's Kriegsmarine during World War II.
26th U-boat Flotilla was a training flotilla of Nazi Germany's Kriegsmarine during World War II.
32nd U-boat Flotilla was a training flotilla ("Ausbildungsflottille") of Nazi Germany's Kriegsmarine during World War II.
33rd U-boat Flotilla was a front-line unit of Nazi Germany's Kriegsmarine during World War II.
