The Atlantic U-boat campaign of World War I (sometimes called the "First Battle of the Atlantic", in reference to the World War II campaign of that name)...

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...

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...

The Mediterranean U-boat Campaign in the Mediterranean Sea was fought by Austria-Hungary and German Empire (with some support by the Ottoman Empire) against...

The Battle of the Atlantic, the longest continuous military campaign in World War II, ran from 1939 to the defeat of Nazi Germany in 1945, covering a...

The Mediterranean U-boat Campaign lasted from about 21 September 1941 to 19 September 1944 during the Second World War. Malta was an active British base...

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...

to a period (May 1943) in the Battle of the Atlantic campaign during World War II, when the German U-boat arm (U-Bootwaffe) suffered high casualties with...

submarines were a class of German diesel–electric Elektroboot (German: "electric boat") submarines designed during the Second World War. One hundred and eighteen...

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...

constructed during World War II, particularly in Germany and its occupied countries, which were also known as U-boat pens (after the phrase "U-boat" to refer to...

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...

Atlantic campaign of 1806 fought between Britain and France as part of the Napoleonic Wars The Atlantic U-boat campaign of World War I The Battle of the...

This is a list of World War I U-boat commanders in the Imperial German and Austro-Hungarian Navies. Only sunk and captured merchant ships are counted...

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...

named in honour of Kapitänleutnant Bernd Wegener. Wegener, a U-boat commander during World War I, died on 19 August 1915 after his submarine U-27 was sunk...

During World War II, Nazi Germany's Kriegsmarine considered various submarine designs for specialized operations or improving U-boat performance. Many of these...

List of U-boat flotillas contains lists of the German U-boat flotillas in the two World Wars. The bases shown here are the ones at which the flotillas...

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...

generally used U-boats stationed in Norway to extend its range of operation in the North Atlantic and Arctic Oceans. The Norwegian bases housed U-boats that took...

of Mudros on 30 October 1918, as part of the Middle Eastern Theatre of World War I. The fighting also involved local Persian units, who fought against...

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...

the planned mass scuttling of the German U-boat fleet, to avoid surrender, at the end of World War II. At the beginning of May 1945 Nazi Germany was collapsing...

U-73 U-74 U-75 U-76 U-83 U-84 U-85 U-86 U-87 U-99 U-100 U-101 U-102 U-69 U-70 U-71 U-72 U-77 U-78 U-79 U-80 U-81 U-82 U-88 U-89 U-90 U-91 U-92 U-93 U-94...

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...

unrestricted submarine warfare, one in World War I and three in World War II: The U-boat campaign of World War I, waged intermittently by Germany between...

was the name of three separate wolfpacks of German U-boats that operated during the Battle of the Atlantic in World War II. The first U-boat group code-named...

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...

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...

J. Abbatiello, Anti-submarine Warfare in World War I: British Naval Aviation and the Defeat of the U-boats (Oxford: Routledge, 2006), 109–11. Paul E...