U-boats

E8217
military submarine naval vessel weapon system

U-boats were German military submarines, most famously used in both World Wars for commerce raiding and naval warfare in the Atlantic.

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All labels observed (11)

Label Occurrences
German U-boats 17
U-boat 4
German U-boat arm 3

Statements (50)

Predicate Object
instanceOf military submarine ⓘ
naval vessel ⓘ
weapon system ⓘ
armament anti-aircraft guns (on many WWII boats) ⓘ
naval mines (on some boats) ⓘ
torpedoes ⓘ
associatedDoctrine submarine guerre de course (commerce war) ⓘ
classification German submarine classes (e.g., Type VII, Type IX) ⓘ
counteredBy Allied anti-submarine warfare ⓘ
Allied convoy system ⓘ
airborne maritime patrol aircraft ⓘ
sonar (ASDIC) ⓘ
countryOfOrigin German Empire ⓘ
Nazi Germany ⓘ
crewSize typically between 40 and 60 men (WWII ocean-going types) ⓘ
designFeature deck gun (on many early types) ⓘ
periscope ⓘ
pressure hull ⓘ
torpedo armament ⓘ
eraOfUse World War I era ⓘ
World War II era ⓘ
early 20th century ⓘ
etymology abbreviation of German word "Unterseeboot" ⓘ
fullNameInGerman U-boats self-linksurface differs ⓘ
surface form: Unterseeboot
governedBy German naval command ⓘ
notableAdversary Royal Navy ⓘ
United States Navy ⓘ
notableBase German-occupied French Atlantic ports (e.g., Lorient, Saint-Nazaire, Brest) ⓘ
notableCampaign Battle of the Atlantic ⓘ
surface form: First Battle of the Atlantic

Battle of the Atlantic ⓘ
surface form: Second Battle of the Atlantic
notableImpact influenced development of modern submarine warfare ⓘ
threatened Britain’s maritime supply lines ⓘ
operatedBy German submarine crews ⓘ
primaryRole anti-shipping warfare ⓘ
commerce raiding ⓘ
naval blockade enforcement ⓘ
primaryTheater Atlantic Ocean ⓘ
Mediterranean Sea ⓘ
North Sea ⓘ
propulsionType diesel-electric ⓘ
strategicObjective disrupt Allied logistics and trade ⓘ
tactic unrestricted submarine warfare ⓘ
wolfpack tactics ⓘ
targetType Allied merchant shipping ⓘ
Allied warships ⓘ
translation undersea boat ⓘ
usedBy Imperial German Navy ⓘ
Kriegsmarine ⓘ
usedInConflict World War I ⓘ
World War II ⓘ

Referenced by (34)

Full triples — surface form annotated when it differs from this entity's canonical label.

Wehrmacht → equipment → U-boats ⓘ
Battle of the Atlantic → mainCombatant → U-boats ⓘ
this entity surface form: German U-boat arm
Battle of the Atlantic → usedWeapon → U-boats ⓘ
this entity surface form: U-boat
U-boats → fullNameInGerman → U-boats self-linksurface differs ⓘ
this entity surface form: Unterseeboot
Western Approaches → threat → U-boats ⓘ
this entity surface form: German U-boats
Mediterranean U-boat campaign → usedWeapon → U-boats ⓘ
this entity surface form: German U-boats
Kriegsmarine → notableUnitType → U-boats ⓘ
this entity surface form: U-boat
Allied merchant shipping → primaryThreat → U-boats ⓘ
this entity surface form: German U-boats
Imperial German Navy → usedWeaponType → U-boats ⓘ
this entity surface form: U-boat
Imperial German Navy → notableUnit → U-boats ⓘ
this entity surface form: U-boat arm
Allied convoy system → mainThreat → U-boats ⓘ
this entity surface form: German U-boats
Greyhound → portraysAdversary → U-boats ⓘ
this entity surface form: German U-boats
Atlantic theatre of World War I → notableForce → U-boats ⓘ
this entity surface form: German U-boats
Heinrich von Lehmann-Willenbrock → militaryUnit → U-boats ⓘ
this entity surface form: U-96
No. 206 Squadron RAF → primaryEnemy → U-boats ⓘ
this entity surface form: German U-boats
Operation Paukenschlag → participant → U-boats ⓘ
this entity surface form: German U-boats
Leigh Light → usedAgainst → U-boats ⓘ
this entity surface form: German U-boats
Bay of Biscay anti-submarine campaign → target → U-boats ⓘ
this entity surface form: German U-boats
HF/DF → primaryTargets → U-boats ⓘ
this entity surface form: German U-boats
2nd U-boat Flotilla → partOf → U-boats ⓘ
this entity surface form: U-boat Arm
Task Group 22.3 → enemyType → U-boats ⓘ
this entity surface form: German U-boats
4th U-boat Flotilla → branch → U-boats ⓘ
this entity surface form: U-boat Arm
4th U-boat Flotilla → usedEquipment → U-boats ⓘ
this entity surface form: Type VII U-boats
ASDIC sonar → usedAgainst → U-boats ⓘ
this entity surface form: German U-boats
PQ convoys → riskFactor → U-boats ⓘ
this entity surface form: German U-boats
HMS Galatea (sunk 1941) → sunkBy → U-boats ⓘ
this entity surface form: German U-boats
Kriegsmarine war ensign → usedOn → U-boats ⓘ
Royal Navy minelaying operations in World War II → aimedAt → U-boats ⓘ
this entity surface form: Axis submarines
Commander-in-Chief, Western Approaches → primaryOpponents → U-boats ⓘ
this entity surface form: German U-boat arm
Commander Ernest Krause → primaryAntagonists → U-boats ⓘ
this entity surface form: German U-boats
No. 311 (Czechoslovak) Squadron RAF → primaryEnemy → U-boats ⓘ
this entity surface form: Kriegsmarine U-boats
Dover Patrol → opponent → U-boats ⓘ
this entity surface form: German U-boat arm
Murmansk Run → threat → U-boats ⓘ
this entity surface form: German U-boats
German U-boat campaign → usedWeapon → U-boats ⓘ
this entity surface form: U-boat