Which of the following offers the best analysis of why the United States entered World War I?

Question

The members of the Triple Alliance promised to help each other if attacked.
he U.S. was angered by German unrestricted submarine warfare.
Archduke Franz Ferdinand was assassinated by a Serbian nationalist.
Great Britain entered into an agreement with France and Russia called the Triple Entente.

Answer 1

The best analysis of why the United States entered World War I from the options provided is: "The U.S. was angered by German unrestricted submarine warfare."

While the assassination of Archduke Franz Ferdinand and the alliances in Europe (Triple Alliance and Triple Entente) were significant in the context of the war’s onset, the immediate catalyst for U.S. involvement was primarily driven by German actions, particularly the use of unrestricted submarine warfare, which led to the sinking of civilian ships, including the Lusitania, and resulted in American casualties. This, along with other factors such as economic ties to the Allies and a desire to support democracy, ultimately motivated the U.S. to enter the conflict.