What was the immediate cause of American entry into World War I?

A. The assassination of Archduke Ferdinand
B. The overthrow of the czar of Russia
C. A series of provocations from the Germans
D. The Battle of the Somme



Answer :

Final answer:

The assassination of Archduke Franz Ferdinand was the immediate cause of US entry into World War I.


Explanation:

The immediate cause of the United States' entry into World War I was the assassination of Archduke Franz Ferdinand in 1914. This event triggered a series of declarations of war among European nations, leading to a global conflict.

Germany's response to the assassination further escalated tensions, drawing in various countries through alliances and military mobilizations.

Ultimately, the assassination acted as a spark that ignited existing tensions fueled by nationalism, alliances, and militarization, culminating in the outbreak of World War I.


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