What was the immediate cause for the United States entering World War I?

Question

Quizplus · Accepted Answer

The immediate cause for the United States entering World War I was Germany's announcement that they would use unrestricted submarine warfare.
Key Takeaway: Ultimately, it was Germany's announcement that it would return to completely unrestricted submarine warfare that led the United States to enter World War I. Submarine warfare greatly hurt shipping and travel, thus violating the freedom of the seas. The United States strongly believed that the seas should be free, safe, and protected.

What Was the Immediate Cause for the United States Entering