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

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...

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...

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

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 in German...

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...

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...

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...

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...

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...

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...

Group 22.3 (TG 22.3), one of six U-boats that were captured at sea by Allied forces during the war. All but one of U-505's crew were rescued by the Navy...

During the Second World War, the German Navy built over a thousand U-boats or submarines for service in the Battle of the Atlantic and elsewhere. Although...

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...

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...

U-2321 U-2322 U-2323 U-2324 U-2325 U-2326 U-2327 U-2328 U-2329 U-2330 U-2331 U-2332 U-2333 U-2334 U-2335 U-2336 U-2337 U-2338 U-2339 U-2340 U-2341 U-2342...

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...

The U-boat War Badge (German: U-Boot-Kriegsabzeichen) was a German war badge that was awarded to U-boat crew members during World War I and World War...

The Type II U-boat was designed by Nazi Germany as a coastal U-boat, modeled after the CV-707 submarine, which was designed by the Dutch dummy company...

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...

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 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...

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...

submarines known as U-boats that were in action during World War II were built between 1935 and 1944, and were numbered in sequence from U-1 upwards. Numbering...

of U-boats cover U-boats, military submarines operated by Germany, particularly in the First and Second World Wars. List of German U-boats List of U-boat...

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...

The Type I U-boat was the first post–World War I attempt to produce an oceangoing submarine for Nazi Germany's Kriegsmarine. The type was based on the...

This is a list of World War II U-boat commanders. Only sunk merchant ships are counted in the totals; warships and damaged ships are not. Submariners suffered...