The Kriegsmarine was the navy of Nazi Germany from 1935 to 1945. It superseded the Imperial German Navy of the German Empire (1871–1918) and the inter-war Reichsmarine (1919–1935) of the Weimar Republic. The Kriegsmarine was one of three official branches, along with the Heer and the Luftwaffe, of the Wehrmacht, the German armed forces from 1935 to 1945.
The German auxiliary cruiser Atlantis, known to the Kriegsmarine as Schiff 16 and to the Royal Navy as Raider-C, was a converted German Hilfskreuzer, or merchant or commerce raider of the Kriegsmarine, which, in World War II, travelled more than 161,000 km (100,000 mi) in 602 days, and sank or captured 22 ships with a combined tonnage of 144,384. Atlantis was commanded by Kapitän zur See Bernhard Rogge, who received the Oak Leaves to the Knight's Cross of the Iron Cross. She was sunk on 22 November 1941 by the British cruiser HMS Devonshire.
An armed merchantman is a merchant ship equipped with guns, usually for defensive purposes, either by design or after the fact. In the days of sail, piracy and privateers, many merchantmen would be routinely armed, especially those engaging in long distance and high value trade. In more modern times, auxiliary cruisers were used offensively as merchant raiders to disrupt trade chiefly during both World War I and World War II, particularly by Germany.
The German auxiliary cruiser Kormoran (HSK-8) was a Kriegsmarine merchant raider of World War II. Originally the merchant vessel Steiermark ("Styria"), the ship was acquired by the navy following the outbreak of war for conversion into a raider. Administered under the designation Schiff 41, 'Ship 41', to the Allied navies she was known as "Raider G". The largest merchant raider operated by Germany during World War II, Kormoran ("cormorant") was responsible for the destruction of 10 merchant vessels and the capture of an 11th during her year-long career in the Atlantic and Indian oceans.
Admiral Scheer was a Deutschland-class heavy cruiser which served with the Kriegsmarine (Navy) of Nazi Germany during World War II. The vessel was named after Admiral Reinhard Scheer, German commander in the Battle of Jutland. She was laid down at the Reichsmarinewerft shipyard in Wilhelmshaven in June 1931 and completed by November 1934. Originally classified as an armored ship by the Reichsmarine, in February 1940 the Germans reclassified the remaining two ships of this class as heavy cruisers.
Operation Rheinübung was the last sortie into the Atlantic by the new German battleship Bismarck and heavy cruiser Prinz Eugen on 18–27 May 1941, during World War II. This operation aimed to block Allied shipping to the United Kingdom as the previously successful Operation Berlin had done. After Bismarck had sunk HMS Hood during the Battle of the Denmark Strait, it culminated with the sinking of the Bismarck, while Prinz Eugen escaped to port in occupied France. From that point on, Germans would rely only on U-boats to wage the Battle of the Atlantic.
SS Stephen Hopkins was a United States Merchant Marine Liberty ship that served in World War II. She was the only US merchant vessel to sink a German surface combatant during the war.
Orion (HSK-1) was an auxiliary cruiser of Nazi Germany's Kriegsmarine which operated as a merchant raider in World War II. Blohm & Voss built her in Hamburg in 1930–31 as the cargo ship Kurmark. The navy requisitioned her at the start of World War II, had her converted into the auxiliary cruiser Orion, and commissioned her on 9 December 1939. Known to the Kriegsmarine as Schiff 36, her Royal Navy designation was Raider A. She was named after the constellation Orion.
Thor was an auxiliary cruiser of Nazi Germany's Kriegsmarine in World War II, intended for service as a commerce raider. Also known to the Kriegsmarine as Schiff 10; to the Royal Navy she was Raider E. She was named after the Germanic deity Thor.
Widder was an auxiliary cruiser (Hilfskreuzer) of Nazi Germany's Kriegsmarine that was used as a merchant raider in the Second World War. Her Kriegsmarine designation was Schiff 21, to the Royal Navy she was Raider D. The name Widder (Ram) represents the constellation Aries in German.
Operation Berlin was a raid conducted by the two German Scharnhorst-class battleships against Allied shipping in the North Atlantic between 22 January and 22 March 1941. It formed part of the Battle of the Atlantic during World War II. The Scharnhorst and Gneisenau sailed from Germany, operated across the North Atlantic, sank or captured 22 Allied merchant vessels, and finished their mission by docking in occupied France. The British military sought to locate and attack the German battleships, but failed to damage them.
Operation Nordseetour was a raid conducted between 30 November and 27 December 1940 by the German heavy cruiser Admiral Hipper. It was part of the Battle of the Atlantic of World War II, with the ship seeking to attack Allied convoys in the North Atlantic. Admiral Hipper left Germany on 30 November 1940 and entered the Atlantic after evading British patrols. She had difficulty locating any convoys and was plagued by engine problems and bad weather. While returning to Brest in German-occupied France, Admiral Hipper encountered Convoy WS 5A on the night of 24 December. A torpedo attack that night did not inflict any damage and Admiral Hipper was driven off by the convoy's escorts when she attacked on the next morning. Two British transports and a heavy cruiser were damaged. The German cruiser sank a merchant ship later on 25 December, and arrived in Brest on 27 December.
Michel(HSK-9) was an auxiliary cruiser of Nazi Germany's Kriegsmarine that operated as a merchant raider during World War II. Built by Danziger Werft in Danzig 1938/39 as the freighter Bielsko for the Polish Gdynia-America-Line (GAL), she was requisitioned by the Kriegsmarine at the outbreak of World War II and converted into the hospital ship Bonn. In the summer of 1941, she was converted into the auxiliary cruiser Michel, and was commissioned on 7 September 1941. Known as Schiff 28, her Royal Navy designation was Raider H. She was the last operative German raider of World War II.
The Battle of the Caribbean refers to a naval campaign waged during World War II that was part of the Battle of the Atlantic, from 1941 to 1945. German U-boats and Italian submarines attempted to disrupt the Allied supply of oil and other material. They sank shipping in the Caribbean Sea and the Gulf of Mexico and attacked coastal targets in the Antilles. Improved Allied anti-submarine warfare eventually drove the Axis submarines out of the Caribbean region.
SMS Möwe was a merchant raider of the Imperial German Navy which operated against Allied shipping during World War I.
The action of 4 April 1941 was a naval engagement fought during the Battle of the Atlantic during the Second World War. A German commerce raider, Thor, encountered the British armed merchant cruiser HMS Voltaire and sank her after a short engagement. The German crew rescued the British survivors, some of whom were repatriated and gave an account to the Admiralty. It was accepted that German commerce raiders were too well armed for converted ocean liners equipped with obsolete guns but nothing else was available to the Royal Navy until later in the war.
The action of 6 June 1942 was a single ship action fought during World War II. The German raider Stier encountered and sank the American tanker SS Stanvac Calcutta while cruising in the South Atlantic Ocean off Brazil.
Admiral Graf Spee was a Deutschland-class "Panzerschiff", nicknamed a "pocket battleship" by the British, which served with the Kriegsmarine of Nazi Germany during World War II. The vessel was named after World War I Admiral Maximilian von Spee, commander of the East Asia Squadron who fought the battles of Coronel and the Falkland Islands, where he was killed in action. She was laid down at the Reichsmarinewerft shipyard in Wilhelmshaven in October 1932 and completed by January 1936. The ship was nominally under the 10,000 long tons (10,160 t) limitation on warship size imposed by the Treaty of Versailles, though with a full load displacement of 16,020 long tons (16,280 t), she significantly exceeded it. Armed with six 28 cm (11 in) guns in two triple gun turrets, Admiral Graf Spee and her sisters were designed to outgun any cruiser fast enough to catch them. Their top speed of 28 knots left only a few capital ships in the Anglo-French navies fast enough and powerful enough to sink them.
The action of 13 May 1942 was a naval engagement during World War II between the British Royal Navy and the German Kriegsmarine. It was an attempt by Royal Navy Motor Torpedo Boats (MTBs) to stop the German auxiliary cruiser Stier from reaching Gironde, France. Stier made it through the English Channel and reached Gironde, but MTBs sunk the German fleet torpedo boats Iltis and Seeadler. MTB 220 was sunk by the German ships.
MV Alstertor was a refrigerated cargo ship built in 1938 for Anders Jahres Rederi A/S of Sandefjord, Norway by Oresundsvarvet, Landskrona, Sweden as MV Rose. In 1939 a German ship-owning firm, Rob. M. Sloman, bought her to transport fruit between Santos, Brazil and Hamburg. In 1940 the Kriegsmarine requisitioned her and converted her into a support ship for naval operations in the Atlantic.
Germany 
Nazi Germany 
