Action of 22 September 1914

E856127

The Action of 22 September 1914 was a World War I naval engagement in which the German submarine U-9 sank three British armored cruisers in quick succession, dramatically demonstrating the lethal effectiveness of U-boats.

All labels observed (1)

Label Occurrences
Action of 22 September 1914 canonical 2

How this entity was disambiguated

Statements (40)

Predicate Object
instanceOf World War I engagement ⓘ
naval battle ⓘ
alsoKnownAs sinking of Aboukir, Hogue and Cressy ⓘ
belligerent German Empire ⓘ
United Kingdom ⓘ
casualties heavy British losses in ships and men ⓘ
cause British patrol of the Broad Fourteens ⓘ
commander Otto Weddigen ⓘ
commanderOfU9 Otto Weddigen ⓘ
conflict World War I ⓘ
countryOfAttackingSubmarine German Empire ⓘ
countryOfShipLost United Kingdom ⓘ
date 22 September 1914 ⓘ
demonstrated lethal effectiveness of submarines ⓘ
vulnerability of large surface ships to submarines ⓘ
description German submarine U-9 sank three British armoured cruisers in quick succession ⓘ
followedBy tightening of British anti-submarine measures ⓘ
impact increased fear of U-boats in the Royal Navy ⓘ
prompted changes in British naval patrol tactics ⓘ
involvedUnit German submarine U-9 ⓘ
linked to: U-9

HMS Aboukir ⓘ
HMS Cressy ⓘ
HMS Hogue ⓘ
location North Sea ⓘ
off the Dutch coast ⓘ
navyInvolved Imperial German Navy ⓘ
Royal Navy ⓘ
notableFor sinking of three cruisers by a single submarine ⓘ
partOf U-boat campaign of World War I ⓘ
precededBy early North Sea patrol operations of 1914 ⓘ
result German victory ⓘ
shipSunk HMS Aboukir ⓘ
HMS Cressy ⓘ
HMS Hogue ⓘ
strategicTheater North Sea theatre of World War I ⓘ
submarineType German Type U 9 submarine ⓘ
tacticUsed submerged torpedo attack ⓘ
timePeriod early months of World War I ⓘ
vesselTypeSunk armoured cruiser ⓘ
weaponUsed torpedo ⓘ

How these facts were elicited

Referenced by (2)

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

SM U-9 → notableEngagement → Action of 22 September 1914 ⓘ
subject linked to: U-9
Otto Weddigen → battle → Action of 22 September 1914 ⓘ