Q-ships, also known as Q-boats, decoy vessels, special service ships, or mystery ships, were heavily armed merchant ships with concealed weaponry, designed to lure submarines into making surface attacks. This gave Q-ships the chance to open fire and sink them.
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.
Merchant raiders are armed commerce raiding ships that disguise themselves as non-combatant merchant vessels.
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.
USS Flier (SS-250) was a Gato-class submarine, was the only ship of the United States Navy to be named for the flier.
USS Tarpon (SS-175), second United States Navy ship of this name, was a Porpoise-class diesel-electric submarine. Tarpon conducted war patrols in the Pacific Ocean during World War II.
USS Crevalle (SS/AGSS-291), a Balao-class submarine, was a ship of the United States Navy named for the crevalle, the yellow mackerel, a food fish, found on both coasts of tropical America, and in the Atlantic as far north as Cape Cod.
The Type B1 submarine, also called I-15-class submarine was the first group of boats of the Type B cruiser submarines built for the Imperial Japanese Navy (IJN) during the 1940s. In total 20 were built, starting with I-15, which gave the series their alternative name.
A hell ship is a ship with extremely inhumane living conditions or with a reputation for cruelty among the crew. It now generally refers to the ships used by the Imperial Japanese Navy and Imperial Japanese Army to transport Allied prisoners of war (POWs) and rōmusha out of the Philippines, the Dutch East Indies, Hong Kong, and Singapore in World War II. These POWs were taken to the Japanese Islands, Formosa, Manchukuo, Korea, the Moluccas, Sumatra, Burma, or Siam to be used as forced labor.
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.
SS Antoine Saugrain was a Liberty ship of the United States that served in World War II. The ship was built at the Permanente Metals Corporation Yard No. 2 in Richmond, California under Maritime Commission Contract 1728. Laid down on 26 July 1943, the ship was launched on 15 August, and delivered on 28 August to Agwilines Inc. She was named after Antoine Saugrain, a French physician and chemist who immigrated to America at the end of the 18th century and led various pioneering works, including on vaccination against smallpox.
HMHS Gloucester Castle was a steam ship originally built for the Union-Castle Line, but requisitioned for use as a British hospital ship during the First World War. On 30 March 1917 she was torpedoed by German U-boat UB-32. She was, however, salvaged, and returned to civilian service after the war. She was sunk by the German commerce raider Michel in 1942 off Ascension Island in the South Atlantic.
An armed boarding steamer was a merchantman that the British Royal Navy converted to a warship during the First World War. AB steamers or vessels had the role of enforcing wartime blockades by intercepting and boarding foreign vessels. The boarding party would inspect the foreign ship to determine whether to detain the ship and send it into port or permit it to go on its way.
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.
Aikoku Maru (愛国丸) was an armed merchant cruiser of the Imperial Japanese Navy in World War II. The ship entered service in 1940, the ship was later converted to an ammunition ship. She was sunk in February 1944 during Operation Hailstone.
SS Hobbs Victory was a cargo Victory ship built for World War II under the Emergency Shipbuilding program. Hobbs Victory, was launched on January 9, 1945 by Permanente Metals Corporation, Richmond, California and completed on January 9, 1945. She was built in just 87 days. She was operated by the Sudden & Christenson for the United States Maritime Commission.
World War II United States Merchant Navy was the largest civilian Navy in the world, which operated during World War II. With the United States fighting a world war in all the world oceans, the demand for cargo and fuel was very high. Cargo and fuel was needed around the world for the United States Navy, United States Army, United States Marine Corps, United States Army Air Forces, United States Coast Guard and the support of the allied nations of the United States. American steamship companies chartered ships from the Maritime Commission and War Shipping Administration to meet the demand. Many United States Merchant Marine ships were newly built in the Emergency Shipbuilding Program, other ships were older World War I ships that were put back in service, or private ships acquired under Emergency war requisitions. The Merchant Navy operated in the Pacific War and European war. Over 200 US Merchant ships took part in the D-day Normandy landings. To make a Normandy breakwater Harbor, called Mulberry harbour, 33 merchant ships were sunk 1,000 yards from shore. Some of the ghosts merchant ships used were damaged and others were deemed too old.
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