Analyze the impact of unrestricted submarine warfare on the United States' entry into World War I.
Instructor solution
Unrestricted submarine warfare, particularly by German U-boats, had a significant impact on the United States' decision to enter World War I. Germany's policy of sinking ships without warning, including civilian and neutral vessels, led to the loss of American lives and property. The sinking of the Lusitania in 1915 and other attacks on American ships created public outrage and increased pressure on the U.S. government to take action, ultimately leading to the declaration of war on Germany in April 1917.
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Which event is most closely associated with the impact of unrestricted submarine warfare on the United States?
- A.
The signing of the Treaty of Versailles.
- B.
The assassination of Archduke Franz Ferdinand.
- C.
The Battle of the Somme.
- D.
The sinking of the Lusitania.
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