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

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15y ago

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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


What promise did Germany make after the Lusitania incident and how did the promise affect U.S. manufacturers?

After the Lusitania incident in 1915, Germany promised to restrict its submarine warfare and adhere to the principles of unrestricted submarine warfare only under specific conditions, which included warning ships before attacking. This promise led to a temporary easing of tensions and allowed U.S. manufacturers to continue supplying goods to the Allies, as they had increased confidence in the safety of transatlantic shipping. However, the eventual resumption of unrestricted submarine warfare in 1917 ultimately pushed the U.S. closer to entering World War I.


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.


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

the Germans' use of unrestricted submarine warfare