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A submarine sunk the liner 'Lusitania'. Many Americans died. USA was horrified, declared war on Germany.

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Q: What role did Submarine Warfare have in regards to World War 1 and the US entering war?
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Related questions

What did you-boats have to do with the US entering World War 1?

Sinking civilian ships without warning (un-restricted submarine warfare).


Germanyhope that there submarine warfare and Attacks would lead to?

Germany's submarine warfare was unrestricted. These attacks led to World War I.


The united States entered World War 1 largely over the issue of?

unrestricted submarine warfare


What was major factor in the decision US to enter world war 1?

Germany's unrestricted submarine warfare


What was one unrestricted warfare development that led to US involvement in World War 1?

unrestricted submarine warfare


In early 1917 the US got into World War 1 because?

Submarine Warfare


What event triggered the American entry into World War 1?

German submarine warfare


The major reason for America's decision to enter World War 1?

unrestricted submarine warfare


Was a major factor in the decision of the US to enter World War 1?

Germany's unrestricted submarine warfare


How did world war 1 effect subsiquent history?

WW1 introduced submarine warfare, tanks, chemical warfare, and aerial combat. Man's history already knew battleship warfare from Tsushima in 1905; and massed land warfare consisting of infantry. WW2 REFINED submarine warfare, tanks, and aerial warfare; chemical warfare was outlawed by treaty.


Why was the US fighting in World War one?

1. Unrestricted Submarine Warfare 2. Sinking of several US ships


What caused the United States to join the Allies in fighting World War 1?

the Germans' use of unrestricted submarine warfare