U-boats were naval submarines operated by Germany, particularly in the First and Second World Wars. The term is an anglicised version of the German word...

Z was shelved in favour of a crash building programme for submarines (U-boats) instead of capital surface warships, and land and air forces were given...

lesser maximum diving depth than earlier U-boat designs. It was planned that final assembly of Type XXI boats would eventually be carried out in the Valentin...

Germany and its occupied countries, which were also known as U-boat pens (after the phrase "U-boat" to refer to German submarines). Among the first forms of...

The U-boat campaign from 1914 to 1918 was the World War I naval campaign fought by German U-boats against the trade routes of the Allies. It took place...

Type VII U-boats were the most common type of German World War II U-boat. 703 boats were built by the end of the war. The lone surviving example, U-995, is...

considered various submarine designs for specialized operations or improving U-boat performance. Many of these designs did not come to fruition for various...

U-27 U-28 U-29 U-30 U-31 U-32 U-33 U-34 U-35 U-36 U-45 U-46 U-47 U-48 U-49 U-50 U-51 U-52 U-53 U-54 U-55 U-73 U-74 U-75 U-76 U-83 U-84 U-85 U-86 U-87 U-99...

U-boats. U-177 U-178 U-179 U-180 U-181 U-182 U-195 U-196 U-197 U-198 U-199 U-200 U-847 U-848 U-849 U-850 U-851 U-852 U-859 U-860 U-861 U-862 U-863 U-864...

Kriegsmarine, she had the distinction of being the "most heavily damaged U-boat to successfully return to port" in World War II on her fourth patrol, and...

U-boat (German: U-Boot) is a German military submarine of World War I and II. U-boat or U-Boot may also refer to: Das U-Boot, computer software, a GNU...

1943—the Italian Archimede and ten German boats: U-128, U-161, U-164, U-507, U-513, U-590, U-591, U-598, U-604, and U-662. By fall 1943, the decreasing number...

from an Allied convoy, German U-boat U-571 has her engines badly damaged by depth charges from a British destroyer. U-571's skipper Kapitänleutnant Günther...

The Rocket U-boat was a series of military projects undertaken by Nazi Germany during the Second World War. The projects, which were undertaken at Peenemünde...

were completed. Type XXIV U-boat – a planned U-boat designed to use air-independent propulsion. Type XXVI U-boat – a U-boat designed to use air-independent...

List of U-boat types contains lists of the German U-boat types (submarine classes) used in World War I and World War II. The anglicized word U-boat is usually...

The Type XIV U-boat was designed to resupply other U-boats, being the only submarine tenders built which were not surface ships. It was nicknamed the...

List of German U-boats in World War II (1-599) List of German U-boats in World War II (600-4712)...

The Gruppe Monsun or Monsoon Group was a force of German U-boats (submarines) that operated in the Pacific and Indian Oceans during World War II. Although...

German submarine U-534 is a Type IXC/40 U-boat of Nazi Germany's Kriegsmarine built for service during World War II. She was built in 1942 in Hamburg-Finkenwerder...

tactic employed in the Second World War. It was used principally by the U-boats of the Kriegsmarine during the Battle of the Atlantic, and by the submarines...

List of successful U-boats contains lists of the most successful German U-boats in the two World Wars based on total tonnage. This list contains the 5...

The Type XVII U-boats were small coastal submarines that used a high-test peroxide propulsion system, which offered a combination of air-independent propulsion...

The U-boat Front Clasp (German: U-Boot-Frontspange) or U-boat Combat Clasp, was a World War II German Kriegsmarine military decoration awarded to holders...

Battle of the Atlantic campaign during World War II, when the German U-boat arm (U-Bootwaffe) suffered high casualties with fewer Allied ships sunk; it...

head of Germany’s U-boat Arm, Konteradmiral Karl Dönitz, was keen to use the French Atlantic ports as forward bases for his U-boat force then engaged...

German submarine U-735 was a Type VIIC U-boat built for Nazi Germany's Kriegsmarine for service during World War II. German Type VIIC submarines were preceded...

ship before the rest of the convoy outran his U-boat, Dönitz began to formulate the concept of U-boats operating in attack groups Rudeltaktik (German...

combat ready U-boat, U-213, reached the Brest base on 20 March 1942. The flotilla operated mostly various marks of the Type VII U-boat and it concentrated...

The 1st U-boat flotilla (German 1. Unterseebootsflottille) also known as the Weddigen flotilla, was the first operational U-boat unit in Nazi Germany's...