Which of the following was the immediate cause for American entry into World War I?
A) Progressives' zeal to correct social injustices
B) The German's sinking of the Lusitania
C) The assassination of Archduke Ferdinand
D) Germany's resumption of unrestricted submarine warfare

Question

Quizplus · Accepted Answer

Germany's resumption of unrestricted submarine warfare was the immediate cause for American entry into World War I. This policy meant that German submarines would sink any vessel in waters they deemed to be a war zone, including those flying neutral flags such as the United States. The sinking of American vessels and loss of American lives, combined with Germany's attempts to form an alliance with Mexico against the US, ultimately led President Wilson to ask Congress for a declaration of war. While the sinking of the Lusitania in 1915 was a significant event, it did not result in immediate American entry into the war.

Which of the Following Was the Immediate Cause for American