German submarine U-23 was a Type IIB U-boat of Nazi Germany's Kriegsmarine, built in Germaniawerft, Kiel. She was laid down on 11 April 1936 and commissioned on 24 September.
German submarine U-12 was a Type IIB U-boat of Nazi Germany's Kriegsmarine laid down on 20 May 1935 by Germaniawerft at Kiel and commissioned on 30 September.
German submarine U-24 was a Type IIB U-boat that was in service of Nazi Germany's Kriegsmarine during World War II. She was laid down on 21 April 1936 at the F. Krupp Germaniawerft in Kiel with yard number 554, launched on 24 September and commissioned into the Kriegsmarine on 10 October. Oberleutnant zur See Heinz Buchholz took command on 3 July 1937.
German submarine U-11 was a Type IIB U-boat built before World War II for service in Nazi Germany's Kriegsmarine. She was commissioned on 21 September 1935, with Kapitänleutnant Hans-Rudolf Rösing in command. She served in several training flotillas in her 10-year career, but sank or damaged no ships.
German submarine U-13 was a Type IIB U-boat of Nazi Germany's Kriegsmarine which was commissioned on 30 November 1936, following construction at the Deutsche Werke shipyards at Kiel. The first commander on board was Hans-Gerrit von Stockhausen. In her career she completed nine patrols, all while serving with the 1st U-boat Flotilla. The U-boat succeeded in sinking nine ships and damaging three more.
German submarine U-15 was a Type IIB U-boat of the Kriegsmarine. It was commissioned on 7 March 1936, following construction at the Deutsche Werke shipyards at Kiel. Its first commander was Werner von Schmidt. In its career, it completed five patrols, all while serving under the 1st U-boat Flotilla. It sank three ships.
German submarine U-17 was a Type IIB U-boat of Nazi Germany's Kriegsmarine. It was built in Germaniawerft, Kiel, where it was laid down on 1 July 1935 and commissioned on 3 December 1935, under the command of Werner Fresdorf.
German submarine U-18 was a Type IIB U-boat of Nazi Germany's Kriegsmarine during World War II. It was laid down 10 July 1935 and commissioned on 4 January 1936. It served in many U-boat flotillas during its service.
German submarine U-14 was a Type IIB U-boat of Nazi Germany's Kriegsmarine during World War II. It served with 3rd U-boat Flotilla from 18 January 1936 to 31 October 1939. U-14 completed six wartime patrols and sank nine ships totalling 12,344 GRT.
German submarine U-9 was a Type IIB U-boat of Nazi Germany's Kriegsmarine. Her keel was laid down on 8 February 1935, by Germaniawerft in Kiel as yard number 543. She was launched on 30 July 1935 and commissioned on 21 August, with Korvettenkapitän Hans-Günther Looff in command.
German submarine U-120 was a Type IIB U-boat of Nazi Germany's Kriegsmarine during World War II. She was laid down on 31 March 1938 at the Flender Werke, Lübeck as yard number 268. She was launched on 16 March 1940 and commissioned on 20 April under Oberleutnant zur See (Oblt.z.S.) Ernst Bauer.
German submarine U-21 was a Type IIB U-boat of Nazi Germany's Kriegsmarine. Her keel was laid down 4 March 1936, by Germaniawerft of Kiel as yard number 551. She was commissioned on 3 August 1936. During World War II, she conducted operations against enemy shipping.
German submarine U-121 was a long-lived Type IIB U-boat built during World War II for service in Nazi Germany's Kriegsmarine. U-121 spent the entire war as a training vessel and was scuttled at the end of the conflict.
German submarine U-433 was a Type VIIC U-boat built for Nazi Germany's Kriegsmarine for service during World War II. She was laid down on 4 January 1940 by Schichau-Werke, Danzig as yard number 1474, launched on 15 March 1941 and commissioned on 24 May 1941 under Oberleutnant zur See Hans Ey.
German submarine U-150 was a Type IID U-boat of Nazi Germany's Kriegsmarine during World War II. Her keel was laid down on 25 May 1940 by Deutsche Werke in Kiel as yard number 279. She was launched on 19 October 1940 and commissioned on 27 November with Hinrich Kelling in command.
German submarine U-151 was a Type IID U-boat of Nazi Germany's Kriegsmarine during World War II. Her keel was laid down on 6 July 1940 by Deutsche Werke in Kiel as yard number 280. She was launched on 14 December 1940 and commissioned on 15 January 1941 with Kapitänleutnant Hans Oestermann in command.
German submarine U-152 was a Type IID U-boat of Nazi Germany's Kriegsmarine during World War II. Her keel was laid down on 6 July 1940 by Deutsche Werke in Kiel as yard number 281. She was launched on 14 December 1940 and commissioned on 29 January 1941 with Kapitänleutnant Peter-Erich Cremer in command.
German submarine U-624 was a Type VIIC U-boat built for Nazi Germany's Kriegsmarine for service during World War II. She was laid down on 15 July 1941 by Blohm & Voss in Hamburg as yard number 600, launched on 31 March 1942 and commissioned on 28 May 1942 under Kapitänleutnant Ulrich Graf von Soden-Fraunhofen.
German submarine U-763 was a Type VIIC U-boat built for Nazi Germany's Kriegsmarine for service during World War II. She was laid down on 21 January 1941 by Kriegsmarinewerft Wilhelmshaven as yard number 146, launched on 16 January 1943 and commissioned on 13 March 1943 under Oberleutnant zur See Ernst Cordes. On 1 November 1944, Oberleutnant zur See Karl-Heinz Schröter took over command as part of her transfer to 24th Flotilla..
German submarine U-1199 was a Type VIIC U-boat built for Nazi Germany's Kriegsmarine for service during World War II. She was laid down on 23 March 1943 by Schichau-Werke, Danzig as yard number 1569, launched on 12 October 1943 and commissioned on 23 December 1943 under Kapitänleutnant Rolf Nollmann.
Nazi Germany 
