At the outbreak of the Second World War Nazi Germany's Kriegsmarine had 21 destroyers in service, while another one was just being completed. These 22 vessels – comprising 3 classes – had all been built in the 1930s, making them modern vessels. Including that final pre-war vessel, a further 19 were brought into service during the war and more were captured from opposing navies, including the Italian Navy after the Italian Armistice with the Allies in 1943.
HNoMS Olav Tryggvason was a minelayer that was built by the naval shipyard at Horten in the early 1930s with the yard number 119. She served in the Royal Norwegian Navy until captured by the Germans in 1940. The Germans renamed her first Albatros II, and a few days later Brummer. She was wrecked in a British bombing raid in northern Germany in April 1945.
Foreign U-boats was the title for a special section created by Nazi Germany's Kriegsmarine that adopted 13 captured enemy submarines and a single Turkish vessel into the U-boat corps. Beginning in 1939 and lasting until the end of World War II in 1945, the Kriegsmarine modified a total of 13 captured enemy submarines, then deployed them into combat with German crews. The special corps was not especially successful, as only ten enemy ships were destroyed by Foreign U-boats through the entire war. Eight of these were destroyed by UA, which was a modified Type IX U-boat originally built for the Turkish Navy. However, some were effective as minelayers.
German submarine U-34 was a Type VIIA U-boat of Nazi Germany's Kriegsmarine during World War II.
German submarine U-438 was a Type VIIC U-boat of Nazi Germany's Kriegsmarine during World War II.
HNoMS Odin was a Sleipner-class destroyer that entered service with the Royal Norwegian Navy in 1939. She and the other Sleipner-class vessels were built as part of a Norwegian rearmament scheme in the last years leading up to the Second World War. In 1940, she had taken part in protecting Norwegian neutrality, before being caught in the German invasion of Norway on 9 April 1940. After fighting the invasion forces at Kristiansand, she was captured and pressed into Kriegsmarine service for the duration of the war. After the end of the war, she was returned to Norway. In 1948, she and her surviving sister ships were converted to frigates and remained in service until sold for scrapping in 1959.
The last of the Trygg class of Royal Norwegian Navy torpedo boats was HNoMS Stegg. Her sister ships were Trygg and Snøgg. The Trygg class vessels were the only additions to the Norwegian fleet of torpedo boats between the First and the Second World Wars. At the outbreak of the Second World War the Trygg class was mobilised together with eight 2. class and six 1. class torpedo boats.
The M class were the standard minesweeper of Nazi Germany's Kriegsmarine during World War II. The vessels were the primary force in Germany's harbor defense command and were organized administratively into minesweeper flotillas.
HNoMS Sæl was the penultimate vessel of the ten 1. class torpedo boats of the Royal Norwegian Navy. She was built at the Royal Norwegian Navy Shipyard in Horten in 1901, with yard number 85. She was to see close to 40 years service with the Royal Norwegian Navy, taking part in the preparations for war in connection with the dissolution the union with Sweden in 1905, enforcing Norwegian neutrality during the First World War and opposing the German invasion of Norway in 1940. She was lost in battle with Kriegsmarine vessels at Ånuglo in the Hardangerfjord on 18 April 1940.
German submarine U-1023 was a Type VIIC/41 U-boat of Nazi Germany's Kriegsmarine. She was laid down on 20 May 1943 by Blohm & Voss in Hamburg, Germany, and commissioned on 15 June 1944 with Oberleutnant Wolfgang Strenger in command. U-1023 sank one ship and damaged one more for a total of 7,345 GRT and 335 tons. After the war she was sunk in Operation Deadlight.
Z7 Hermann Schoemann was a Type 1934A-class destroyer built for Nazi Germany's Kriegsmarine in the mid-1930s. The ship was plagued by machinery problems for most of her life and was under repair when the Second World War began in September 1939. She covered her sister ships over the next few months as they laid offensive minefields in English waters in late 1939 – early 1940. Hermann Schoemann played a minor role in the Norwegian Campaign as engine problems limited her availability throughout 1940 and for most of 1941.
ZH1 was the lead ship of her class of four destroyers built for the Royal Netherlands Navy in the late 1930s. Originally named Gerard Callenburgh, the ship was scuttled while still incomplete by the Dutch during the German invasion of the Netherlands in May 1940, but she was salvaged by the Germans a few months later and commissioned in the Kriegsmarine in 1942 as ZH1.
German submarine U-1202 was a Type VIIC U-boat built for Nazi Germany's Kriegsmarine for service during World War II. She was laid down on 28 April 1943 by Schichau-Werke, Danzig as yard number 1572, launched on 11 November 1943 and commissioned on 27 January 1944 under Kapitänleutnant Rolf Thomsen.
The Type 1940 torpedo boats were a group of 24 torpedo boats that were intended to be built for Germany's Kriegsmarine during World War II. Although classed as fleet torpedo boats by the Germans, they were comparable to contemporary large destroyers. They were designed around surplus Dutch propulsion machinery available after the Germans conquered the Netherlands in May 1940 and were to be built in Dutch shipyards. Hampered by uncooperative Dutch workers and material shortages, none of the ships were completed before the Allies invaded Normandy in June 1944. The Germans towed the three ships that were most complete to Germany to be finished, but one was sunk en route by Allied fighter-bombers and no further work was done of the pair that did arrive successfully. The remaining ships in the Netherlands were later broken up for scrap and the two that reached Germany were scuttled in 1946.
HNoMS B-5 was a Norwegian B-class submarine which was captured by an E-boat of the Nazi Germany's Kriegsmarine during Operation Weserübung on 9 April 1940 at Kristiansand, Norway. After which she was renamed UC-1 and used as a school boat for the Kriegsmarine before she was deemed unsuited for reserve training and was broken up in 1942.
The German torpedo boat TA37 was an Ariete-class torpedo boat operated by the German Kriegsmarine during the Second World War. The ship was built for the Italian Navy by the shipbuilder CRDA at their Trieste shipyard with the name Gladio in 1943, but was incomplete when Italy surrendered to the Allies in September 1943, and was seized by Nazi Germany. The ship entered service as TA37 in 1944, serving in the Adriatic and Aegean seas and was sunk by British destroyers on 7 October 1944.
The German torpedo boat TA24 was an Ariete-class torpedo boat operated by the German Kriegsmarine during the Second World War. The ship was built for the Italian Navy by the shipbuilder Ansaldo at their Genoa shipyard with the name Arturo in 1943, but was incomplete when Italy surrendered to the Allies in September 1943, and was seized by Nazi Germany. The ship entered service as TA24 in October 1943, serving in the Tyrrhenian Sea and was sunk by British destroyers on 18 March 1945.
The Ålesund class was a proposed class of destroyers planned for the Royal Norwegian Navy. Construction began on two ships in 1938, but the incomplete ships were captured during the German invasion of Norway in 1940. While Germany continued construction works on the two destroyers, neither were completed, with one sunk by sabotage in 1944 and the other by British bombers in 1945. The Norwegians raised one of the destroyers and attempted to complete it, but the incomplete ship was sold for scrap in 1956.
